He is a serial Cop Killer, with his first kill. Who knows how many more he would of killed if not for the Tip line and some amazing Police work.
He is also the key suspect in the torching of several Seattle Police vehicals just days before he assinated the Seattle Cop.
More on him here:
Suspect in cop’s shooting had bomb-making arsenal. (domestic terrorist in Seattle)
http://www.komonews.com/news/local/69476452.html
In a sane world, he and Hasan would share the same rope. Wonderful that they caught him just before the end of Brenton’s service.