the guy who was killing the lead singers, the homeless man.

Ah yes, of course! My bad. I have a mad memory. In that episode I wasn't able to keep the names of all the fake singers apart. :D But Al is clear, of course.
Since I don't think the show is broadcast in the UK I guess your colleague doesn't watch the show. But maybe you can ask him if he was a singer in an earlier life. :)

Thank you! I wish I could better animate icons but I think it's okay. :) I took some notes yesterday for some screencaps (from the evil Russian episode in December). But right now I don't want to make more "Life" icons (I already use so many).

I think we can agree that those were the funniest episodes in quite some time. :D