A 54-year-old woman living just outside of Tucson, Arizona didn’t really want to have to shoot a neighbor to tried to force entry to her residence, but the man didn’t give her many options. Living by herself, she didn’t have anyone else to help her repel the would-be intruder. She did have a handgun, though, and he availed herself to the great equalizer.

The would-be intruder, a 42-year-old registered sex offender named Jayson Magrum, apparently didn’t care that she’d gotten her gun and told him to stop. Maybe he didn’t think she’d use it. She even fired a warning shot as he tried to crawl in through a window. Even after the shot, Magrum reached in and tried to disarm the woman.

That’s when she shot him. At point-blank range, the pistol proved itself as a great equalizer, ending the attack. The sex offender collapsed after a few more steps and will re-offend no more.