The Man Behind the Slaughter

Someone who murdered a bunch of little kids. He's also purple and he is truly behind the slaughter. Beware, kids.

"Dude, did you hear about that song named The Man Behind the Slaughter?"

"Yeah... Uhm, I-" *in thoughts* : omg I must not reveal that I am the Ma Behind the Slaughter!
"BTW, your skin... It's, purple?"
"Oh, *to be continued*"