As jury selection begins on Friday this week in the murder trial of Dallas police officer Amber Guyger.

According to reports, prosecutors and the defense will focus first on eliminating people from the pool who show signs of biases.

Guyger, 31, shot and killed 26-year-old Botham Jean the night of Sept. 6, 2018, in his apartment at the South Side Flats near downtown Dallas. Guyger claims that she thought that she was in her own apartment when she shot him, but neighbors say that they heard the pair arguing before she fired the fatal shot.

Back in June, State District Judge Tammy Kemp asked attorneys about the leaking of Guyger's 911 call after the shooting despite a gag order. During the call, Guyger tells dispatchers that he shot Botham Jean.

What was shocking about the audio is that Guyger appeared to be more concerned about losing her job than about the life that she took.

Guyger: I’m Amber Guyger. I need, get me. I’m in. 

Operator: OK we have help on the way.

Guyger: I know but I’m, I’m going to lose my job. I thought it was my apartment.

Operator: OK.

Jean was watching football on his couch when Guyger entered his apartment.

Jean's mother spoke to The Dallas Morning News after the call was released, and believes more than ever that he son's murder was intentional.

“The call made me strengthen my view that Amber Guyger is a cold-blooded killer because she was more concerned about losing her job than my son, the value of my son,” Allison Jean said at the time. “She does not sound like she was trying to help him at all.”