the death of eric somuah angered him more than most. >> he was just sleeping. ric's sisters were grateful to have someone as committed as ruvin working their brother's case. >> he is a phenomenal investigator. >> and now just days after eric was murdered, it looked as if detective ruvin might give the family some resolution. one of eric's lovers katrina ben the investigators a new suspect. eric's pot dealer. >> it didn't make sense to me. i was thinking why is he here? >> katrina told them how uneasy she felt with the dealer in the apartment. >> it was just a little uncomfortable. he just seemed a little weird. >> so at just around 5:00 a.m. katrina said she got out of there. >> she said the guy then just came up to her as she was leaving and basically pushed her out with the door. >> based on katrina's account, police believe eric was killed some time in the early morning hours of june 5th, 2012. ruvin brought in the dealer for questioning. a man named william woodfork. >> and he was like i have no idea who that is. never met him before. >> did you believe him?