This rule that you have to kill off the most likeable character, who is not the lead character, in the third or fourth series of every detective series nowadays is really getting on my nerves. It was shocking and appropriate in "Cracker" all those years ago but now it is as predictable as the lead character being thrown off the case by his superior only to solve the case anyway.
Heck, even the Scandinavians are doing it now.
I don't like it. It has to stop.