OLD BRIDGE, N.J. - Unhappy with his life as a Marine stationed in California, Terence Tyler posed a question three years ago on Twitter: "is it normal to want to kill ALL of ur coworkers?"
Struggling with depression, he left the Marines and recently started working at a supermarket in New Jersey.
On Friday morning, Tyler shot two co-workers and himself, police said. The 23-year-old, clad in desert camouflage gear, opened fire at a Pathmark store in Old Bridge Township, authorities said.
Authorities are investigating his motive, but family members said Tyler was discharged from the Marines two years ago after suffering from depression and had never gotten over his mother's death about five years ago.
Authorities said Tyler left his job as an overnight clerk at the Pathmark about 3:30 a.m. He drove off and returned to the store shortly afterward with a handgun and an assault rifle, Middlesex County Prosecutor Bruce Kaplan said. About a dozen workers were in the closed store, putting new prices into a computer.
Tyler fired more than 16 rounds from his rifle — shooting at an employee standing outside and blowing out windows, authorities said. He shot at five other workers in an aisle, killing Christina LoBrutto, 18, and Bryan Breen, 24, the prosecutor said.
Tyler, who began working at the supermarket less than two weeks ago, then drew his handgun and killed himself, Kaplan said.
Several ammunition magazines were recovered along with the rifle and a .45-caliber handgun, he said.