WASHINGTON (CNN) -- After touring the wreckage Tuesday of two Metro transit trains that crashed the day before, killing nine, Washington Mayor Adrian Fenty said it was a sight that "no one should have to see."



Investigators work Tuesday at the site of a Metro train crash in Washington.



Officials said that all the wreckage has been cleared and that no other bodies have been found in what was the worst subway train accident in the history of the Washington Metropolitan Area Transit Authority.



Three bodies discovered Tuesday were lodged behind the driver's compartment of the rear train, an official said at the scene.



The driver of that train, who was among the dead, was Jeanice McMillan, 42, of Springfield, Virginia, Metro spokeswoman Lisa Farbstein said. McMillan had worked at Metro since January 2007.



McMillan's aunt, Venice Foster, said her niece loved her job and "was just a joy to be around."



Retired Maj. Gen. David F. Wherley Jr., former commanding general of the District of Columbia National Guard, and his wife, Ann, also were killed in the collision. Both were 62.



Names of the other casualties were released by authorities Tuesday afternoon: Mary Doolittle, 59; Lavanda King, 23; Veronica Dubose, 26; Cameron Williams, 36; and Dennis Hawkins, 64, all of Washington; and Ana Fernandez, 40, of Hyattsville, Maryland.  Watch what officials know about the crash »



The Metro's board approved a $250,000 hardship fund to assist the victims' families with funerals and other immediate expenses.



According to Fenty, at least three bodies were trapped in a "very compressed area." It wasn't clear whether those were the bodies found behind the operator's station.



"It just brings home what an awful tragedy this was," the mayor said.



The crash occurred along the Red Line just before 5 p.m. Monday on an above-ground track in the District of Columbia near Takoma Park, Maryland.  See location of crash »



Both cars were on the same track, traveling in the same direction: southward from the Fort Totten Metrorail station to the Shady Grove station. The train in front had stopped behind another train undergoing service and awaited directions to move ahead.



"We don't know at this point whether the operator could see the train in front of her in time to stop," said Deborah Hersman, who is leading the investigation for the National Transportation Safety Board.



The weather at the time of the crash was good, she said.  See pictures of crash site »



"I did have the opportunity to walk the track with our investigators. I can tell you it is a scene of real devastation," Hersman said.



Jamie Jiao was sitting in the front car of the second train. He said he suffered injuries to his feet and back.



"I see the train in front a split second before we crashed. That's all. You don't have time to react or do anything," he told CNN's Jeanne Meserve.



He said that after impact, "You just hear really loud noises, as if there was an explosion. I could see things falling apart, tearing apart."



A pole fell on top of him, but he was able to throw it off. The car broke open, and he crawled outside, where he waited for firefighters. He said he didn't notice whether the driver tried to brake before hitting the other train.



Many of the passengers in his car were injured, he said.



"I'm lucky to be alive," Jiao said. "My injuries aren't too bad." iReport.com: Were you there? Share your photos, video



Hersman said there was a telescoping effect when the second car slammed into the first and landed atop it.



"The first car [of the second train] overrode the rear car [of the front train], and much of the survivable space on that first car of the striking train was compromised," she said.



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