Austin McCord, 19, accidentally shot and killed his step-sister Emilee Bates, 13, while cleaning his AK-47 assault weapon on the day of her birthday (video below).
“He believed he was making the weapon safe by pulling the trigger to drop the bolt on an empty chamber. However, the chamber wasn’t empty and discharged," said Johnson County Sheriff Bob Alford in a press release.
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According to NBC Dallas-Fort Worth, police responded to a 911 call at about 8 p.m. and found Bates shot in the stomach.
Bates was transported to the Texas Health Harris Methodist Hospital in Fort Worth, but died during emergency surgery, noted the Star-Telegram.
The shooting is considered an accident and no charges will be filed.