53-year-old dean was a night club owner and lead singer in a fetish band. he died of a heroin overdose back in september and in that case she told police she tried to revive him for about five minutes before finally calling 911. but police reports show the couple had a volatile relationship and now investigators are taking a much closer look at the circumstances surrounding his death and how it relates to the death of the google executive. listen. >> the second case shows a knowledge or predisposition or previous behavior that is consistent with this. she has done this before. she know what is the potential results are. >> before former google executive died he googled how to defend yourself after giving someone heroin. they had an on going call girl relationship. in november she visited him on his yacht in santa cruz.