Cops: Plant worker killed colleague a day after he yanked a chair out from under him as prank

A worker at a suburban Philadelphia meat rendering plant has been charged with fatally stabbing a colleague a day after the co-worker yanked a chair out from under him as a prank.

Authorities said Thursday that 32-year-old Peter Atem killed 25-year-old Danny Vazquez on Wednesday at the MOPAC plant in Franconia Township.

Vazquez was killed one day after pulling a chair out from under Atem. Authorities say witnesses saw Atem stab the victim.

Police say they found Atem hiding in a shed with self-inflicted stab wounds, along with a note that said, "See you in hell. Life for life."

Atem underwent surgery and remains hospitalized. He's been charged with first-degree murder.

It's not clear whether he has an attorney.