Jake Bleiberg, The Associated Press

Shooting suspect Seth Ator's house near Odessa.
Mitch Borden / Marfa Public Radio

The gunman in a West Texas rampage that left seven dead obtained his AR-style rifle through a private sale, allowing him to evade a federal background check that blocked him from getting a gun in 2014 due to a “mental health issue,” a law enforcement official told The Associated Press.

Dallas police officer Amber Guyger, left, shot and killed Botham Shem Jean in his apartment.
Kaufman County Sheriff's Office via REUTERS: Guyger/Facebook: Botham Shem Jean

The former Dallas police officer who fatally shot an unarmed black man in his own home told a 911 dispatcher "I thought it was my apartment" nearly 20 times as she waited for emergency responders to arrive, according to a recording of the call obtained by a Dallas TV station.