Prosecutors say a Seattle-area man fatally shot a 17-year-old boy in the back after he mistook an airsoft gun the teen was carrying for a real gun.

Now, Aaron Brown Myers faces second-degree murder and assault in connection with the death of 17-year-old Hazrat Ali Rohani.

Police say 51-year-old Myers confronted Rohani and two other teenage boys outside of a Big 5 Sporting Goods in a Seattle suburb on June 5.

Off-Duty Seattle Security Guard Spots Teens Returning Airsoft Guns to Sporting Goods Store and Shoots One In the Back

Big 5 Sporting Goods (Photo: Yelp)

According to a criminal complaint, Myers was in the store’s parking lot that day when he saw the three boys walk in front of his parked car. He told police that as a licensed security guard, he regularly conducts “overwatch” at that location while his son attends martial arts class next to Big 5.

He wasn’t on official guard duty that day but claimed that he saw one of the boys passing by his car with a “Glock” and assumed that the teens were going to pull off an armed robbery at one of the shops nearby. He told detectives he didn’t have time to call 911 and felt a “duty to act,” so he confronted them.

Myers alleged that when he approached the teens, they ignored his commands, and he thought one was going to “kill him.”

Source: ‘A Duty to Act’: Vigilante Seattle Man Shoots Teen Returning Airsoft Gun to Sporting Goods Store Six Times In the Back After Assuming He Was a Robber