her neighbor, botham jean was in his apartment. what we knew is she went to his apartment. she thought it was hers. when she saw him, she fatally shot him. the yaaftermath of that inciden caught in this video. now for the first time, we're hearing officer guyger's call. >> i shot a guy, thinking he was in my apartment. >> reporter: an attorney for jean's family listening with us. the audio obtained exclusively by dallas station wfaa. >> all i can imagine is botham on the ground taking his last breath. and that was very difficult for me. >> okay. we have help on the way. i know, but i'm going to lose my job. i thought it was my apartment. >> reporter: in the recording, guyger can be heard growing increasingly distraught. >> oh, my god. i'm done. i didn't mean to. i didn't mean to. i didn't mean to. i'm so sorry. hey, bud. >> reporter: guyger now potentially facing prison time. jean's family left in anguish. >> she took my life away. like my very own life. >> reporter: while the community grapples with unanswered questions. >> we're still dealing with an america where black p

. >> reporter: for the first time since botham jean, an innocent man, was gunned down inside his own home, we hear the frantic 911 call. >> i thought i was in my apartment and i shot a guy thinking that he was -- thinking it was my apartment. >> you shot someone? >> yes, i thought it was my apartment. >> reporter: offduty officer amber guyger's call for help, obtained exclusively by dallas station wfaa. >> okay, we have help on the way. >> i know, but i'm -- i'm going to lose my job. >> reporter: a desperate-sounding guyger appears to try to comfort the wounded man. >> hey bud. hey, bud. they're coming, they're coming. i'm sorry, man. i didn't mean to. i'm so sorry. >> reporter: 26-year-old jean rushed to the hospital. paramedics unable to save him. >> i thought it was my apartment. i thought it was my apartment. >> reporter: 19 times guyger tells the dispatcher she thought jean was in her apartment, which was exactly one floor below. she had just returned home from work. guy ger toer tol guyger told police she thought jean was an intruder and that she opened fire when he disobeyed h

is like i can't help but be involved in politics because i am pushing for justice. 26-year-old botham jeanapartment where the officer thought he was a burglar. he was watching a football game. here is a young man in his apartment miening his business and he gets shot. >> i was determined that we take advantage of this moment to take some serious systematic changes. i joined the marches and the protests and also had been in conversations with the mayor and the district attorney as well as the police chief. >> we are calling for the dallas police department to do everything they need to do to reform that police department. >> we have been involved from talking to those and dealing with trying to push for change in the streets. >> yeah. what are you doing tonight? >> tonight is bible study. >> when i think of bible study, i think of church basement and quiet reflection, not at the west. there is a message to be heard just like any given sunday. >> there is a choir and choreograph dancers. the pastor tell s it like it is. >> maybe i have been betrayed. betrayal can make you bitter. have you fe