Armored truck guard critically wounded in ambush outside Balch Springs bank

An armored truck guard was critically shot during an ambush at a Balch Springs bank ATM. Investigators believe the suspect lay in wait before attacking the Loomis guard, who never entered the bank. FBI agents are leading the investigation, and surveillance video obtained by CBS News Texas shows the masked suspect running from the scene carrying a bag similar to those used for cash pickups. No arrests have been announced.