Caught on his own dash cam. A trucker named Jorge Espinoza was driving down the highway near Yuma, Arizona, when he crashed into three cop cars and two fire trucks . . . killing one of the officers.

Espinoza claimed he didn't see the emergency vehicles on the side of the road because he was checking his mirrors. Authorities revealed that Espinoza was actually on his phone when it happened. They know this because he had a dashboard camera recording himself.

Police were able to check his cell phone data, and it turns out he had been looking at photos of half-naked women on Facebook. Espinoza is now awaiting trial, and they're charging him with second-degree murder.