Jeffrey Dahmer's full confession – a couple of hundred pages of pure madness. Necrophilia, dismemberment, skinning, lobotomy, body part preservation, cannibalism… Dahmer became pretty close to his interrogating detectives (Dennis Murphy and Patrick Kennedy), and provided a lot of detail to them. A lot of it in a pretty candid, off hand manner. It's incredibly hard to find Dahmer's confession online without it being behind a paywall, but it is in the public domain, so I've provided link to the pdf downloads. The first 63 pages are mainly forms and letters, the real meat of the confession starts afterwards.

Part 1

Part 2