Amtrak shooting captured on train station webcam

A Drug Enforcement Administration special agent was killed on Monday when a passenger opened fire. The accident came when officers were doing a routine inspection for illegal contraband on an Amtrak train in Tucson, Arizona, authorities said.

A second agent and a Tucson police officer were wounded. The shooting happened just after 8 a.m. on a train stopped at the station in the city's downtown.

The shooter exchanged several rounds with police and then barricaded himself in a bathroom on the lower level, police said. later, he was found dead inside. The other suspect has been arrested.

It wasn't immediately known what charges he faces or his relationship to the second man. Amtrak spokesman also confirmed there were no reported injuries to the crew or passengers.