There's a lot of great info out about Profiling a Murderer.
I think one of the main reasons perpetrators return to the scene is to psychologically relive the crime. This sicko may even drive the identical route to get there, fantasizing the rush he felt to surprise and attack CB.
The second reason to return is curiosity about the investigation -- am I going to get away with it.
If KS noticed that there was a constant presence of investigators and forensic people at the apartment, he's thinking they are still looking for evidence, and that is a good thing as it was not readily available to them.
I think he must have been elated when crime scene was soon turned back over to the management, and then weeks, months went by with no coverage, no information, nothing.
KS probably convinced himself there was little or no evidence found. All that time pumping up his narc/pathetic ego how smart he was and investigators too stupid to figure it out.
For this killer, control and dominance is crucial. Self disclosure is his greatest fear. He cannot handle the facts of his depravity spoken before his peers, family, and friends for they may change their minds about him.
He's going to accept the plea agreement but he's going to control how and when, and it will be at the last minute.
MOO
