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 Baltimore's state's attorney probably did not expect to be thrust into the national spotlight during her fourth month on the job. And yet Marilyn Mosby — the youngest top prosecutor of any major city in America — now finds herself playing a key role in a local drama that has gripped the country. 
 
 The 35-year-old is tasked with determining whether charges are warranted in the controversial death of Freddie Gray, the 25-year-old black man who died after suffering a spinal cord injury in police custody. Gray's death has inspired protests in Baltimore and nationwide. 
 
 On Thursday, the Baltimore police commissioner announced the department had handed confidential information on how Gray died over to prosecutors. The Justice Department is working on its own independent investigation. 
 
 Mosby did not return a call from NBC News requesting comment, but her office confirmed it had received the police department's investigative file. 
 
 "However, the results of their investigation is not new to us," the office said in a statement. " We have been briefed regularly throughout their process while simultaneously conducting our own independent investigation into the death of Freddie Gray. ... We ask for the public to remain patient and peaceful and to trust the process of the justice system." 
 
 Mosby is a Democrat who comes from a long line of police officers — but she has been vocal about holding cops accountable in the past. 
 
 "It was important to have somebody who was willing to look at it from both sides, and Marilyn Mosby fit the bill." 
 
 "She has a natural affinity for police officers and law enforcement types, and at the same time, she is aware of the incredible number of complaints against the Baltimore City police department," said Richard Woods, a Baltimore-based attorney whose practice is primarily criminal defense work. 
 
 Woods has known Mosby for years and supported her in her campaign for state's attorney. "It was important to have somebody who was willing to look at it from both sides, and Marilyn Mosby fit the bill." ||||| BALTIMORE (AP) — Police completed their investigation into the death of Freddie Gray a day earlier than planned Thursday and delivered it to the chief prosecutor in Baltimore, who pleaded for patience and peace while she decides whether to bring charges. 
 
 Members of the National Guard walk along North Avenue near where Monday's riots occurred following the funeral for Freddie Gray, after a 10 p.m. curfew went into effect Wednesday, April 29, 2015, in Baltimore.... (Associated Press) 
 
 Members of the National Guard pass through the area where Monday's riots occurred following the funeral for Freddie Gray, after a 10 p.m. curfew went into effect, Tuesday, April 28, 2015, in Baltimore.... (Associated Press) 
 
 Members of the National Guard pass through the area where Monday's riots occurred following the funeral for Freddie Gray, after a 10 p.m. curfew went into effect, Tuesday, April 28, 2015, in Baltimore.... (Associated Press) 
 
 Protestors walk through smoke Tuesday, April 28, 2015, in Baltimore. A line of police behind riot shields hurled smoke grenades and fired pepper balls at dozens of protesters to enforce a citywide curfew.... (Associated Press) 
 
 Members of the National Guard patrol Wednesday, April 29, 2015, in Baltimore. A line of police behind riot shields hurled smoke grenades and fired pepper balls at dozens of protesters to enforce a citywide... (Associated Press) 
 
 Police in riot gear line up near the scene of Monday's riots ahead of a 10 p.m. curfew Wednesday, April 29, 2015, in Baltimore. The curfew was imposed after unrest in Baltimore over the death of Freddie... (Associated Press) 
 
 Protestors demonstrate outside the State Attorney's office calling for the continued investigation into the death of Freddie Gray, Wednesday, April 29, 2015, in Baltimore. Activists stressed that they... (Associated Press) 
 
 A store entrance is boarded up as a pedestrian walks through downtown, Wednesday, April 29, 2015, in Baltimore. Schools reopened across the city and tensions seemed to ease Wednesday after Baltimore... (Associated Press) 
 
 A woman walks past shuttered stores on North Avenue, Wednesday, April 29, 2015, in Baltimore. Law enforcement presence in response to unrest has greatly diminished, as schools reopened across the city... (Associated Press) 
 
 Police in riot gear walk past boarded up row homes after a 10 p.m. curfew went into effect Wednesday, April 29, 2015, in Baltimore. The curfew was imposed after unrest in Baltimore over the death of Freddie... (Associated Press) 
 
 The deputy commissioner also revealed a new detail that raises still more questions about what the officers involved have told investigators: The van carrying Gray to the police station made a previously undisclosed stop that was captured on a "privately owned camera." 
 
 State's Attorney Marilyn Mosby must review the evidence, consider charges and decide how to move forward in the death of Gray, who suffered severe spinal injuries at some point after he tried to run from police on April 12, and died a week later. 
 
 Police Commissioner Anthony Batts took no questions and provided no details about the report, which he said represents the work of more than 30 investigators. 
 
 "I understand the frustration; I understand the sense of urgency," Batts said. "That is why we have finished it a day ahead of time." 
 
 Batts said police would keep probing at the direction of the state's attorney, while Mosby stressed that her office is doing its own investigation. 
 
 "We are not relying solely on their findings but rather the facts that we have gathered and verified. We ask for the public to remain patient and peaceful and to trust the process of the justice system," her statement said. 
 
 Batts left it to Deputy Commissioner Kevin Davis to release yet another official timeline of what happened to Gray after his arrest nearly three weeks ago. 
 
 In all, the previously undisclosed stop now makes four stops between the time officers arrested Gray and his arrival at a police station, where he was found unresponsive. He was hospitalized in critical condition and died a week later. 
 
 Batts and Davis said nothing more about when or how investigators obtained the previously undisclosed video or learned about the additional stop. However, five of the six officers gave statements to investigators the day Gray was injured, and as recently as a week ago, the stop was not part of the official timeline, suggesting investigators learned of it later. 
 
 Gray was arrested after he made eye contact with an officer and ran. Officers chased him down and handcuffed him behind his back. Bystander videos recorded police loading him, dragging his legs, into one of two metal compartments in the back of the van. 
 
 Police earlier said the van stopped once so that officers could put Gray in "leg irons" because he had become "irate;" stopped again because the driver asked for an additional unit to check on Gray's condition, and then again to put an additional prisoner in the van's other compartment before arriving at the station. 
 
 Now police are saying an additional stop was made before the driver asked officers to check on his condition. They said nothing about this stop other than its location — at what appears to be a desolate intersection with three vacant lots and a corner store. Last week, Batts had said the second prisoner told investigators the driver did not speed, make sudden stops or "drive erratically" during the trip, and that Gray was "was still moving around, that he was kicking and making noises" up until the van arrived at the police station. 
 
 Mayor Stephanie Rawlings-Blake sought to dispel any notion that the police report would bring a swift and public conclusion to the case. "Whatever time the state's attorney's office needs to make that determination, the family wants to get it right," she said Wednesday after meeting with Gray's family and legal team. 
 
 "This family wants justice and they want justice that comes at the right time and not too soon," said Hassan Murphy, one of the family's lawyers. 
 
 Meanwhile, protests over Gray's death spread Wednesday night to other cities including Boston, New York and Washington, making it clear that tensions over the case are far from subsiding. The demonstrations were mostly peaceful, but police made many arrests, including at least 60 in New York. 
 
 Gray's death was only the latest high-profile case of a black man dying as the result of a police encounter. Similar protests erupted over the killings of Michael Brown in Ferguson, Missouri; Eric Garner in New York last year, and Walter Scott in South Carolina. Scott was shot in the back by a white officer who has since been charged with murder. 
 
 ___ 
 
 Associated Press writers Ben Nuckols, Juliet Linderman, Matthew Barakat, Tom Foreman Jr., Jessica Gresko, Brian Witte and Jeff Horwitz contributed to this report. ||||| Baltimore police have found that Freddie Gray suffered a serious head injury inside a prisoner transport wagon, with one wound indicating that he struck a protruding bolt in the back of the vehicle, according to sources familiar with the probe. 
 
 New details of the investigation emerged as police officially turned over the case to city prosecutors Thursday. Police said they have "exhausted every lead." 
 
 In announcing an early conclusion to the first phase of their investigation, police also revealed a previously unknown stop by the transport van driver. Officials declined to comment further on what happened but said they had obtained private security footage depicting that event. 
 
 While witnesses have said that police officers roughly handled Gray, who died a week after his arrest from injuries including a severed spine, police have said a focus of their investigation has been what occurred in the van. 
 
 Police also have acknowledged that officers violated protocol by not buckling in Gray and providing medical help when he asked for it. 
 
 The van made several stops before arriving at the Western District police station, where Gray was found unresponsive and taken to the hospital. At one stop, the van picked up another prisoner, who was taken to the station on the other side of a metal partition. 
 
 CR Market surveillance video provided police with a missing piece of the Freddie Gray wagon ride. The owner let police copy the video, which was taken during the riots. (Catherine Rentz/Baltimore Sun video) CR Market surveillance video provided police with a missing piece of the Freddie Gray wagon ride. The owner let police copy the video, which was taken during the riots. (Catherine Rentz/Baltimore Sun video) SEE MORE VIDEOS 
 
 The prisoner originally told police that Gray was thrashing about but later recanted part of his account that it sounded like he was trying to hurt himself, according to sources familiar with the investigation. 
 
 "I heard a little banging like he was banging his head," Donta Allen, the second prisoner, told The Baltimore Sun's media partner WJZ-TV on Thursday. 
 
 Gray's death has unleashed a maelstrom of unrest, with protests in Baltimore and around the nation, putting pressure on city and police officials to explain what happened. 
 
 Police Commissioner Anthony W. Batts noted that the investigation's first phase wrapped up a day before his self-imposed deadline of May 1, which he said demonstrated the agency's sense of urgency around the case. 
 
 "I understand the frustration, I understand the sense of urgency, and so has the organization, and that is why we finished a day ahead of time," Batts said. "I also know that getting to the right answer is more important than speed." 
 
 Police did not make all of its investigative findings public. 
 
 State's Attorney Marilyn Mosby will ultimately determine whether to bring charges against any of the six officers involved in Gray's arrest, and she has not set a timetable for that decision. The officers have been suspended with pay. 
 
 In a statement, Mosby confirmed that she had received the police investigative file but stressed that her investigation is independent. Gray's family and their lawyers were seen leaving the state's attorney's office Thursday evening. 
 
 "While we have and will continue to leverage the information received by the department, we are not relying solely on their findings but rather the facts that we have gathered and verified," Mosby said. "We ask for the public to remain patient and peaceful and to trust the process of the justice system." 
 
 Gray died April 19, a week after being arrested in West Baltimore. He suffered a spinal cord injury and crushed voicebox and had lapsed into a coma. 
 
 Maryland's chief medical examiner, Dr. David R. Fowler, said his office has not completed an autopsy or turned any documents over to police or prosecutors. He said homicide detectives had observed the examination, a routine practice. 
 
 "Our first report will be final, and will go directly to the state's attorney's office," Fowler said. He said his office was conducting one of its last examinations and anticipated results would be available "shortly." 
 
 Investigative files include everything assembled by detectives — incident reports, crime lab reports, photos, witness interviews, the results of search warrants, and other items. 
 
 Video of the tail end of Gray's arrest shows him groaning and his feet dragging underneath him. A witness said officers pulled back his legs and had him folded up like "origami." Video taken by citizens of Gray's arrest shows him yelling and dragging his feet as officers carry him to the van. 
 
 But as protests erupted, police said they were focused on what happened inside the van and did not believe the catastrophic spinal injury occurred during his arrest. Police said earlier this month that a preliminary autopsy showed no indication that force was used. 
 
 Video taken by citizens of Gray's arrest shows him yelling and dragging his feet as officers carry him to the van. 
 
 Many residents and activists had been eyeing Friday as a day that findings of the police investigation might be released, but police and Mayor Stephanie Rawlings-Blake had worked the previous day to dispel those expectations. 
 
 "The family of Mr. Gray wants answers. I want answers. Our entire city deserves answers into Mr. Gray's death," Rawlings-Blake said Thursday. "I ask that everyone remain patient and vigilant on this path to justice." 
 
 The attorney for Gray's family, William "Billy" Murphy Jr., said family members did not expect details to be released to them this week and are willing to wait for a thorough investigation to be conducted. 
 
 "We want a correct investigation, an accurate investigation — not a rushed investigation," Murphy said told Sun columnist Dan Rodricks on WYPR 88.1 FM. 
 
 One new piece of information did emerge Thursday: Deputy Commissioner Kevin Davis said police determined that the police wagon transporting Gray made a previously unknown stop, at North Fremont Avenue and Mosher Street. 
 
 Investigators scoured that area for surveillance footage and found a private camera showing the van stopped in that area after picking up Gray, he said. 
 
 "That's new to us," Davis said. 
 
 He did not elaborate on what that tape shows or if it was relevant to the investigation. 
 
 Jung Hwang, 43, owner of CR Market on the corner, said that police came and collected footage from his surveillance system sometime last week, but that he had not watched it himself. 
 
 Rhonda Sneed, 64, who has lived across the street for 17 years, said she did not recall anything on the morning of April 12, but was not surprised the van had driven down her street at some point. 
 
 "The police vans, the ones who lock up people, they ride through here all the time," she said. 
 
 Police said that while they had turned over files to prosecutors, the department's investigation remains active and new leads would be followed as they arise. 
 
 The American Civil Liberties Union of Maryland said a double standard remains for police officers who are under investigation.
– Baltimore's police department wrapped up its own investigation into Freddie Gray's death a day early and turned it over to the city's top prosecutor today, reports the Baltimore Sun. Now all eyes are on State's Attorney Marilyn Mosby, who is in her fourth month on the job and at 35 is the youngest lead prosecutor in any major US city, reports NBC News. Her supporters, though, say she's perfect for the case. Police work runs in her family, but she campaigned for office talking tough against police brutality. "She has a natural affinity for police officers and law enforcement types, and at the same time, she is aware of the incredible number of complaints against the Baltimore city police department," says an attorney who knows her. "It was important to have somebody who was willing to look at it from both sides, and Marilyn Mosby fits the bill." Mosby's office released a statement emphasizing that it will conduct its own investigation into Gray's death and not just rely on the police report. One new wrinkle: Police revealed that the van carrying Gray made an additional, previously undisclosed, stop on the way to the police station, though the reason and significance aren't clear. The AP says the van stopped at "a desolate intersection with three vacant lots and a corner store." (Earlier, another prisoner in the van suggested that Gray was trying to injure himself, at least according to a police document cited by the Washington Post.)