Definitely around 47-51 seconds into the video there is a shadow on the elevator as if a car pulled in. About 10 seconds later she walks around the corner. Was that who she was on the phone with? Did the person call out or say something to make her walk around there? Was she meeting someone at the apartments and they pulled up in a car so she walked over there? LE has to know what cars left around that time. Maybe by resident card or whatever. How did she get in the elevator area without a resident card? Is it open? Would someone have to buzz you in?