So, I have to conclude that he probably used the Chainsaw to decapitate the guy, after killing him, correct?  Or did I entirely miss the point of your post, Reg?  And so, if he were  indeed wearing that shirt at the time of the murders, it could have been stained as described?

Boy, am I good or what?

OK, my sick sense of humor aside, that was a very scary situation.  Great post.   I feel so secure now, knowing Dale is traipsing up there in the North Maine woods, half-drunk, looking for guys with bloodstained chainsaws, while we are at home sleeping safe and sound in our warm little beds.   Hope he changed out of the ale-soaked socks before he slipped on his boots.

Gene