Verified answer

I was too, I liked his character. The actor that played him got a role on Sons Of Anarchy so that's probably why he left. However, by killing him they set up a season long plot ( sort of )

He was the easiest cop to kill because we knew who he was but he wasn't a big part yet.

Mike Anderson Dexter

I actually thought they were bringing in someone new to be paired with Deborah later in the show. I was shocked when they killed him off so fast. There could've been a good character there. Sadly though if this season continues like the first episode was I won't be watching anymore. It's so slow and Deb is being so annoying with the whole killer thing. Just kill her off already and get back to the awesomeness that is Dex. I mean I enjoyed all the series up to the Season with Lumen (it seemed like they were grasping at straws and too focused on a bit character) but then the DDK season was pure gold. Unfortunatley though it seems they're grasping at those straws again. We'll see how it plays out.

I was a little surprised that he bit the bullet so quickly, but with next season being the last season of the show, nobody really has much time left and it's time to start working towards the end-game.

Very surprised I thought they could have done a lot more with his character