They don't have to be registered. My best friend lives in the complex and I go there all the time. For the visitors, you just have to enter a code to get in and then visitor parking is on the top of the parking garage. Also, this complex struggles with resident security. Gates/doors that require access FOBs are frequently broken. It is also possible that there were other cameras present but they weren't working. My friend walked her dog that Wednesday and she said she got home around 5:30 ish. She uses that same exact elevator to go down to walk her dog on Roseland. She also told this to the detective that knocked on doors. Also, earlier I saw someone asking why they noticed her car like that. It is because it was completely blocking another street. The residents of the complex received an email from the leasing office staff on behalf of the lead detective. In it, there is a picture of the jeep that is time stamped 4/17 5:47. So IMO that that picture is actually from video footage that has not been released. The drivers side of the car door is completely visible, and you can see inside the window of the car that the driver's seat is empty.