In the grand tradition of perpetually cribbing from boinboing, an article from Radar about a pop culture historian Bill Geerhart, who, posing as a ten year old looking for advice about dropping out of school, wrote letters in the late '90s to several prominent figures, notably a few incarcerated serial killers. The whole project is worth checking out - he also wrote follow-up letters recently - but here's my favorite response, from Richard Ramirez, aka "The Nightstalker":
If that's too small and/or illegible, a transcript:
Billy,Somehow it doesn't even need the terrifying (yet somewhat comical) personal stationary to make it really, really creepy.
Greetings. Got your letter. What school do you go to? Who's your friend? You should stay in school. Send pictures.
Also, please note how gorgeous Erik Menendez's handwriting is. It's like, borderline arousing.