In the late '90s, Bill Geerhart, launched a letter-writing campaign to some of the most powerful and infamous figures in the country, posing as a curious 10-year-old named Billy. One of those infamous figures was Charles Manson. Below you can read the letters that were sent and received.
http://www.radaronline.com/from-the-magazine/2008/04/letter_to_charles_manson_richard_ramirez_ted_kacyinski_bill_2.php