Bystanders react as emergency personnel work the scene where a trailer carrying wounded veterans in a parade was struck by a train in Midland, Texas, Thursday, Nov. 15, 2012. "Show of Support" president and founder Terry Johnson says there are "multiple injuries" after a Union Pacific train slammed into the trailer, killing at least four people and injuring 17 others. (AP Photo/Reporter-Telegram, James Durbin)

Photo by: James Durbin

Bystanders react as emergency personnel work the scene where a trailer carrying wounded veterans in a parade was struck by a train in Midland, Texas, Thursday, Nov. 15, 2012. "Show of Support" president and founder Terry Johnson says there are "multiple injuries" after a Union Pacific train slammed into the trailer, killing at least four people and injuring 17 others. (AP Photo/Reporter-Telegram, James Durbin)