 The body of missing college student Mollie Tibbetts was found Tuesday, her father and two sources told Fox News, bringing an end to an intensive search that lasted more than a month and captured national headlines. “That there was some kind of misunderstanding about the nature of their relationship and at this point they don't know how to get out from under this.” 
 
 A reward of nearly $400,000 leading to information on Tibbetts' whereabouts will now become a reward for information leading to the capture of any suspects. Shortly after her disappearance, investigators collected video footage from the east side of Brooklyn from the evening of July 18. More Mollie Tibbetts coverage: 
 
 Officials pulled him in for questioning Monday, when he admitted to "making contact with a female running in Brooklyn" and that he pursued her to an area east of town in Poweshiek County, according to the criminal complaint. Iowa Division of Criminal Investigation Assistant Director Mitch Mortvedt would not confirm whether Tibbetts was alive when Rivera allegedly placed her in the trunk. The suspect is an undocumented immigrant who authorities believe has been in the area for four to seven years, Rahn said. Charges were filed in district court in Poweshiek County and bail was set at $1 million. According to court documents, the suspect said in an interview that when he approached Tibbetts, she pulled out her cell phone and told Rivera she was going to "call the police" and that caused him to get angry. He said he blacked out and woke up at an intersection in rural Poweshiek County, court documents say. Rahn said the suspect told investigators he realized he had put the woman in the trunk of his car and when he took her out, he saw blood on the side of her head, the document says. He told officials he then put her over his shoulder and took her 20 meters into the cornfield where he covered her with some cornstalks and left her. Tibbetts' father, Rob Tibbetts, told Fox News the body found is that of his 20-year-old daughter, who vanished in mid-July. Greg Willey, the vice president of Crime Stoppers of Central Iowa, also told the Associated Press the body found Tuesday is believed to be Tibbetts. CLOSE The Register's Shelby Fleig and Bryon Houlgrave report near the scene at 460th street on the latest news on the Mollie Tibbetts search. ... We commend the swift action by local, state, & federal investigators working in Iowa in apprehending an illegal immigrant, who's now charged with first-degree murder. Extensive and lengthy search 
 
 Tibbetts was last seen jogging on July 18 in the small community of Brooklyn, Iowa, about an hour east of Des Moines, according to the Poweshiek County Sheriff's Office. Tibbetts, a University of Iowa student, was reported missing after she failed to respond to messages from her boyfriend, Dalton Jack, and did not show up for work.
– Mollie Tibbetts' father confirmed the reports that emerged Tuesday morning: His daughter has been found dead. Rob Tibbetts made the confirmation to Fox News in advance of a 4pm local time news conference, at which time authorities revealed a first-degree murder charge has been filed in the case. The Des Moines Register reports the suspect is Cristhian Bahena Rivera, 24. He lives in rural Poweshiek County, where the body was found; Brooklyn, the town from which Tibbetts vanished, is in that county. Rivera has reportedly lived in the area for four to seven years and is an undocumented immigrant. CNN reports surveillance video helped authorities zero in on a suspect and that data from Tibbetts' Fitbit also provided clues. Officials say Rivera followed Tibbetts as she jogged and allegedly abducted her; they say he led them to a female body, which was in a cornfield and covered with cornstalks, per Special Agent Rick Rahn with the Iowa Division of Criminal Investigation. "For whatever reason he chose to abduct her," Rahn said. An autopsy is scheduled for Wednesday, and should reveal more on how and when she died, though the Register notes it could take as long as six weeks to get the results. The Des Moines Register reported the property where the body was found is a roughly 15-minute drive from Brooklyn. A medical examiner vehicle and SUVs were seen at the scene, and the Register reports a no-fly restriction has been put in place by the FAA over an area that encompasses "460th Avenue near North English River just southeast of Guernsey" through early Wednesday morning.