A disgruntled employee at a Pathmark supermarket in Old Bridge, NJ brought an AK-47 assault rifle and a pistol to the store and killed two co-workers before turning the gun on himself this morning. The man, who was a former Marine, had worked at the store for roughly two weeks. 

The shooter was identified only as a 24-year-old male, while the two victims were an 18-year-old woman and a 23-year-old man. According to NBC New York, he had gotten into an argument with the two victims before leaving the store, and returned with the weapons.They locked the doors, but he shot out the windows and entered, killing both of them and then committing suicide.

[via Gothamist]