Midsomer Murders

Hey, did anyone catched the Midsomer Murders episode last night (26th Feb) Dead Letters? I was watching it and then the power when out in my neighbourhood and I missed the end. I saw up until the 2nd man was killed (the farmer with the dog) and I was just wondering if anyone could tell me what happened, or just tell me who did the murders. Thanks in advance.

Yea i saw it. But seeing as i havenet been on this site in so long iv fogoten how to do the spoiler thing so il put it below

The docter dies next and the killer was that 2nd guys best friend

Hi, I missed the end of the episode last night due to personal reasons (the one where the man died at the begining of 'natural causes' with his family) and I was just wonderin if anyone could tell me who did all of the murders (I also saw the murders of the solicitor and one of the family members?). Thanks in advance.