DALLAS (AP) — 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.

"I'm an off-duty officer. I thought I was in my apartment and I shot a guy thinking he was, thinking it was my apartment," Amber Guyger said in the Sept. 6 recording obtained by WFAA .

Guyger, who is white, is charged in the killing of Botham Jean and is set to go to trial later this year. She has said she e...