The Amtrak train, headed to New York City, derailed and crashed in Philadelphia on Tuesday... (Associated Press) 
 
 As Philadelphia Mayor Michael Nutter, left, and Pennsylvania Gov. (Photo: Win McNamee, Getty Images) 
 
 The Amtrak train that derailed and killed at least eight people sped up for about a minute before derailing at a curve in Northeast Philadelphia, the National Transportation Safety Board announced Thursday. It's unclear, Sumwalt said, whether the speed was increased manually by engineer Brandon Bostian, who grew up obsessed with trains. Inconvenience for travelers, big hit for Amtrak 
 
 For all the high emotions in Philadelphia, things were decidedly calmer at that city's main train station and those in Washington and New York -- because many trains simply weren't running. In a CNN interview Wednesday, Nutter called the engineer's driving "reckless," adding, "There's no way in the world he should have been going that fast into the curve." 'No recollection' of crash 
 
 Bostian's lawyer told ABC's "Good Morning America" his client "has absolutely no recollection whatsoever" after losing consciousness in Tuesday night's crash. And his lawyer said Bostian voluntarily took a blood test and there was "no drinking, no drugs, no medical conditions. As the death toll climbed on Thursday with the discovery of what was believed to be the last body in one of the mangled railcars, Mayor Michael Nutter again appeared to cast blame on Bostian, questioning why the train was going so fast. Service between Washington and Philadelphia is running at modified levels, while all traffic between New York City and Philadelphia remains suspended. Amtrak CEO Joe Boardman said the crash was Amtrak's first in the Northeast Corridor in 28 years, during which time 300 million passengers had ridden its rails. The system is called the positive train control (PTC), which, according to Amtrak, is designed to prevent the collision of two trains, derailments caused by excessive speed and some human errors such as misaligned tracks during switching. He only recalls getting thrown around, coming to, finding his bag and his cellphone, and dialing 911, Goggin said. But Goggin said the engineer doesn't recall anything out of the ordinary and doesn't remember applying the emergency brakes, as investigators say was done. Goggin said that his client "cooperated fully" with police and told them "everything that he knew," immediately consenting to a blood test and surrendering his cellphone.
– The Amtrak train in Tuesday night's deadly crash was going the speed limit until just before the derailment, when it mysteriously sped up when it should have slowed down, according to National Transportation Safety Board investigators. NTSB member Robert Sumwalt says that in the space of around a minute, the train's speed jumped from 70mph to 102mph, the Philadelphia Inquirer reports. Sumwalt says it's not clear whether engineer Brandon Bostian—who was concussed and has "no explanation" for the derailment—accelerated manually. Sumwalt says inspection records haven't revealed any problems with the track, signals, or the Siemens "Cities Sprinter" locomotive itself, reports USA Today. Bostian has told investigators he has no memory of the crash or of engaging the emergency brake, but Sumwalt says he did so seconds before the derailment, CNN reports. He says the engineer, who's recovering from multiple injuries, has agreed to be interviewed by the NTSB and will be allowed to have a lawyer present. The "positive train control" system that could have prevented the crash was just months away from becoming a reality in the Northeast Corridor, reports the New York Times. John Boehner called a question about funding cuts contributing to the crash "stupid" yesterday, but funding problems did contribute to the delay, the Times reports. The train—and the tracks—were already equipped with the system, but it took four years to buy the rights to airwaves to switch it on. An eighth victim was found by a cadaver dog yesterday. Like many other victims, Ecolab exec Bob Gildersleeve, 45, was on his way home to his family. When he didn't make it home on Tuesday, his wife and two teenagers traveled to Philadelphia to search hospitals for him, NBC Philadelphia reports. Though there are still many questions surrounding the crash—especially the increase in speed—Amtrak says it takes full responsibility for it, the AP reports. "With truly heavy hearts, we mourn those who died. Their loss leaves holes in the lives of their families and communities," CEO Joseph Boardman said in a statement. "Amtrak takes full responsibility and deeply apologizes for our role in this tragic event." Amtrak says full service between New York and Philadelphia should resume early next week.