A second airman in a month at a U.S. Air Force base in Wyoming stands accused of involuntary manslaughter for a shooting death.

The 20-year-old airman allegedly shot a man in a Cheyenne apartment after firing an AK-47 rifle through a wall, according to law enforcement officials.

The weekend arrest and firearm death come just weeks after a Security Forces airman was killed by an M18 handgun on base, which resulted in the arrest of an unidentified person charged with involuntary manslaughter.