I can give you a bit of a crash course.
When Tom was 28, him and a woman he was shacking with molested a 15 year old girl named Sabrina. He wrote a recounting of the story on another forum, and the response was about what you'd expect. He then walked it back, claiming it was fictionalized, before admitting the situation did happen. He wavers on what exactly happened, but what is known for a fact is the woman kicked Tom out, and some other room-mates shit kicked him.
He's also admitted to molesting a dog in the mid-to-late 80s, and that the thought of dogs vaginas give him erections (search for 'dog boner story' for details). He's also admitted to kicking and punching animals, both acts (the molestation and the violence) being justified as "training"
He joined the hippy movement around this time, as he was a homeless burnout beatnik but being a beatnik wasn't counterculture enough for him. He eventually got kicked out from the Rainbow Family (A collective of hippies) for allegedly molesting a child at one of the gatherings. He denies this, saying it's a conspiracy against him.