An argument Sunday night ended in the shooting death of Christopher Rubio in the 2700 block of 12th Street.

Rubio’s roommate, 39-year-old Gilbert Martinez, is accused of killing him.

Neighbors say they were arguing at about 7:30 p.m. One told police he heard Martinez say, “You better call 911 if you want them to save your life.” Another heard arguing and then a “pop,” according to WFAA.

Rubio was taken to Methodist Dallas Medical Center, and he told Dallas Fire-Rescue, “my roommate shot me, and I think it was a 9-millimeter.”

Police arrested Martinez after searching the house and finding a 9-mm handgun.

Martinez is charged with murder and is in jail pending a $100,000 bond.