Oh okay, I don't know what made me think that.
It just seemed like there was a bit of doubt to me or there was something a little fishy about it but you have a good point SC, he's a retired cop and there was never any mention of him not being the killer etc. And there was never any other reasoning in the episode for him to get whacked.

Side topic, is 'wetting a guy' the same as whacking a guy?