Grand Forks Air Force Base officials say the alleged gunman from a Tuesday Wal-Mart shooting in south Grand Forks had been stationed on the base since February 2013.
Marcell Travon Willis, 21, was a senior airman and an active-duty service member stationed at the base, according to a news release.
"The Airmen of Grand Forks Air Force Base are deeply saddened by this event and we extend our sincere condolences to the victims, their families and everyone affected by this tragedy," Col. Paul Bauman, 319th Air Base Wing commander, said in the release.
The Grand Forks Air Force Base was Willis' first duty station, according to the release. His primary duty was supply. Grand Forks police say Willis entered the Wal-Mart in the south Grand Forks shortly after 1 a.m. Tuesday and shot two Wal-Mart employees, killing one and injuring the other. Police say he shot at another employee, but missed, before fatally shooting himself. Wednesday: Victims ID'd in shooting