CNN Early Start With John Berman and Christine Romans May 19, 2015 09:15:00
The fbi ruling out a gunshot as the derailment after reviewing the damage to the train's windshield. the ntsb says it is possible another object may have struck the windshield at the same time an attorney for the four people injured in the crash is announcing a mass action lawsuit against amtrak focusing on the speed and lack of speed control technology. law enforcement keeping its focus on the man at the control of the amtrak 188. more from rene marsh. >> reporter: poppy, we have been speaking with government sources here in philadelphia and they all indicate that there is a sharp focus on th...