Dallas, Texas (CNN) On the screen before Botham Jean's parents, a video of their son's last moments unexpectedly began playing. Police were trying to save his life as he lay on the floor of his apartment, bleeding from a gunshot wound.

Allison and Bertrum Jean bent over in their seats and looked at the courtroom floor. Bertrum held his hands over his ears and turned to the wall next to his seat.

After a few minutes, Botham's parents and family and friends stood up to leave.

Allison Jean sobbed loudly as she walked out the door. This was the kind of moment she had been dreading and preparing for.

District Judge Tammy Kemp asked for the body camera footage to be played on Wednesday, the third day of the murder trial in Dallas.

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