Michael Anthony Sifuentes of Bullhead City (2)A mix of prison and probation is the punishment for a man who engaged in sexual activity with his girlfriend’s 12-year-old daughter in Bullhead City. A complaint from the victim’s grandmother triggered a Bullhead City police investigation in June. Michael Anthony Sifuentes, 25, was arrested for multiple sex offenses on June 20. He pled guilty to sexual conduct with a minor and attempted child molestation charges during an August 26th change of plea hearing before Mohave County Superior Court Judge Steve Conn. Judge Conn ordered a 13 year prison term during an October 6 hearing. Sifuentes will serve lifetime probation upon his release from prison.