but they also say one activity the arian brotherhood is extremely adepartment at is murder. convicted murderer douglas young of san jose used to be a member of the arian brotherhood until he became an informant against the group. so you yourself killed other inmates? >> yeah. yeah. it was a prerequisite. that was to earn your bones. even before you got in you had to show your bones and your loyalty. >> there was a guy there. i liked him a lot. he was a friend. he was involved in something he shouldn't have been. he was investigated for three to four months. when we couldn't clear him i had to cut his throat. >> reporter: the arian brotherhood's is contract killings, racketeering and drug trafficking. last month federal and state authorities announced the indictments of more than 30 alleged members of the arian brotherhood for 16 murders. >> they have membership and partnerships that reach far beyond the prison walls. there may be a murder in the community and it will be reported as a drug deal gone bad. when, in fact, it could be the direct business of the arian brotherhood.