they may have a piece of the puzzle to get this creature off the streets. >> paul jackson is just a monster. he, he preys upon weak women. and he takes what he wants when he wants them, and he treats them like they're nothing. he needs to be caught. >> paul jackson has a scar on his stomach from having his appendix removed. jackson has lived in both arizona and hawaii and has a back ground in electronic and automotive work. if you've seen paul jackson or know anything about his whereabouts, please call 1-866-the hunt, or go to our website at cnn.com/the hunt. you can remain anonymous. we'll pass your tip on to the proper authorities, and if requested, we'll not reveal your name. >> vance started writing to me just shortly after he got into prison. his letters were 14 pages all the time. and he's never written a word