Potential plot hole - SPOILERS
This could be a plot hole, or maybe I just assume to much of police investigators.
So after they found out about Timo - wouldn't their investigation into him reveal that he lived at the place where Peer has worked for years, and that they would have been there at the same time in 1986? And then they would note that Peer was on their list of cars to check.
I suppose with Timo dead they may not have done that in-depth an investigation.
What do you guys think?