Combining all the evidence and McDonald's contradictory statements, I'm even more convinced he did it after watching this series. The fact that he was cool as a cucumber right after that horrible crime, before and after he was found guilty and acquitted, while living 9 years in freedom, dating women, doing interviews, enjoying the attention, being in the spotlight
etc. Makes me believe that he is a psychopath. I recently watched a YT video where a fellow inmate in the 80's told some pretty devastating things about McDonalds such as that he could get completely furious in a fraction of a second for trifles.