Guy Peace Character is there for a reason.
you know Plot connivance. where everyone knows each other, we have 2 red herrings already Frank and the priest. and there is no way this killer or kidnapper will be someone we haven't met.
We have seen this 100 times before in tv shows where the killer ends up being a character the lead somehow knows or is involved with and is only there for that plotline.
If you remember the killing. that first season had an entire plot with the guy going for Mayor that just wasn't in the series for the sake of it.
I am calling it now it is the Guy Pearce character. with mare having this love triangle story going on now, it's the big setup to be him lock it in.. There is no other reason for him to now be in the series besides being Guy Pearce. there is no other reason logically thinking they have decided to bring the other detective in as a love romance for it to end with them together after catching the Guy Pearce character. They are just not gonna write a story that means nothing but a side romance. with a star like Guy Pearce in it
I hope I am wrong because I am enjoying this series and the acting but please don't go that predicable line of making the killer someone that the main character knows or is involved in it has been done 100 times