Terrifying moment drunk driver, 37, kills pal after showing off in his BMW while speeding at 80mph as he’s jailed

This is the moment a drunk driver killed his friend in a horror crash while "showing off" in his powerful BMW. Mariusz Kosinski, 37, was seen speeding on the wrong side of the road before losing control and flipping his car onto its roof. The footage shows him screaming "I killed the dude!" after realising...