CHATSWORTH, CA – OCTOBER 3, 2008 – Bob Atkinson, 65, from Winnetka, Lt, Chris Cassel, 56, of Chatsw

CHATSWORTH, CA – OCTOBER 3, 2008 – Bob Atkinson, 65, from Winnetka, Lt, Chris Cassel, 56, of Chatsworth, Ct, and Chris Watson (security guard) looking northbound at the Metrolink Chatsworth station, on October 3, 2008. They were the three observers who say they were at the station before last months train crash have asserted in interviews that a final, crucial railroad signal was green as the commuter lines engineer headed toward the collision point. The accounts, including one from a station security guard and another from a retiree who says he was interviewed by a federal investigator, contradict a key preliminary finding by the National Transportation Safety Board. (Photo by Ricardo DeAratanha/Los Angeles Times via Getty Images)