A 16-year-old robbery suspect got more than he bargained for when he tried to hold up a man for his gun.

DETROIT, Mich. (WTHR) - A 16-year-old robbery suspect got more than he bargained for when he tried to hold up a man for his gun.

According to WDIV-TV, 16-year-old Xavier Futrell walked into a west Detroit gas station with a gun Sunday morning and tried to take Darius Summers' gun. Thinking he was an easy target, Futrell stuck his gun in Summers' back.

"I said, 'All I want to do is leave,'" Summers said. "He said, 'You can't leave.' I said, 'OK. What do you want to do?'"

As the teen took control, Summers pulled his gun and shot Futrell twice in the stomach. The boy picked up his gun, which he had dropped, and limped out of the store.

Summers, who said he had just received his concealed carry license, said he never shot a gun before, but wasn't shooting to kill Futrell, but "shot to save his life." He said as a grandfather, he spoke to the teen as if it was his own grandson.