My thinking is, it could be possible that they were trying to avoid bringing attention of where this workplace is to the media. They did allegedly speak to the employer/owner first before deciding to take the path they did. Perhaps the owner was concerned about his business being tarnished by this crime.
ITA
My other questions that have just come up is that she mentioned how the reason he didn't have his car was that the police had taken it as well as his shoes etc prior and he was keeping it to himself. I am wondering how they know that now?
Maybe the police told SIL during his interview after the arrest...would like to know that myself, someone must have let this info slip, maybe even his own brother perhaps?
She did mention that the police whisked the suspect away and then they took the son in law somewhere and talked to him also. Perhaps it was after talking to him and the suspect that they then decided to arrest the suspect.
I think they decided to arrest the suspect the instant those initial DNA results came in and they got a match, but that they probably wanted to talk to SIL to see if he had anything to tell them now that he knew the accused was under arrest, eg other observations, weird comments etc.
I still find it strange that after knowing they had taken his car, shoes etc that he still calmly went to the police station, could he possibly be that naive or overly confident? had he blocked the memory out? or perhaps he just didn't know what else to do?
I think he was continuing the 'helpful friend' ruse, and really what else could he do, if he didn't play along and look like he was being helpful then suddenly everything heats up and he was hoping to avoid that.
It's weird, some actions would make one think he is guilty and trying to hide it where as other actions would make one think he was not guilty and unaware. If he is guilty, he can't be totally oblivious or why would he feel the need to hide his arms and keep the reason why he didn't have his car a secret (if true)? You would think if he was totally innocent he would be angry that they suspect him of doing such a thing to his best friend and taking his car?
And yet he hides his face, says nothing....I am surprised that he seemed to calmly get on with the fake grieving process and not to set off any alarms in anyone else actually, but considering everyone around him was wrapped up in their own grief, shock, horror then I guess that could explain it. Unusual behavior, but I have a feeling he thought his actions were justified in his own warped world view, so what's to feel bad about from his point of view?