For the first time, the public has been given access to the 911 call a Texas officer placed after she fatally shot her upstairs neighbor in his own apartment last year.

Ex-Dallas police officer Amber Guyger, 30, is heard saying, “I thought it was my apartment,” 19 times in the 911 call obtained by WFAA. Guyger is also heard mentioning that she will lose her job and asking for a supervisor.

“I thought I was in my apartment and I shot a guy thinking he was, thinking it was my apartment,” Guyger says in the 5-minute-38-second call.

“Oh my God. I’m sorry.”

Late last year, a grand jury indicted Guyger, 30, on murder charges for the September 6 shooting that killed Botham Jean, 26. She reportedly told police she had finished a 15-hour shift when she parked her car on the fourth floor of her apartment building, instead of on the third floor where she lived.

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Guyger reportedly said the door was slightly ajar when she placed the key with an electronic chip into the keyhole, causing the door to open further. Documents stated that she claimed she saw a “large silhouette” and gave it verbal commands before opening fire, wounding Jean in his torso. He ultimately died from his injuries.

In late October, The Dallas Morning News reported that the district attorney’s office rebuffed their requests for the 911 call Guyger placed on the night in question and Jean’s autopsy report. The autopsy report remains private despite this week’s release of the 911 call.

Guyger’s trial is scheduled to begin in September.

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[Featured Image: Botham Jean/Facebook; Amber Guyger/Kaufman County Sheriff’s Office]