these are the last pictures of brianna denison, before she disappeared.n mackay court, at about 3:30 am. at the house, brianna made a fateful decision. she decided to sleep on the living room couch. >> she wanted to text her boyfriend anyways, maybe call them because they were fighting at the time. >> the couch was a few feet from the front door. and the front door was a glass paned, giving anybody on the street on easy view of the couch. and that night, the door was unlocked, which was not unusual. >> kind of like a hotel, we all walk our individual doors. but the living room was a lobby, we left it unlocked in case someone forgot their keys. >> around 4 am, k.t. said goodnight to her friend, and went into her bedroom. right next to the living room. >> her last words were, if you need anything, come into my room. >> the detectives looked at her cell phone records, and at 4:23 am, breonna text message her boyfriend in oregon. exactly what happened after that, in the predawn hours of a 24-hour town was a mystery. because by 9 am, the couch was empty, and s