Thug Drops Dead While Raping Victim, 77 Overweight con rode bike 2 miles to get to elderly woman's home By Mary Papenfuss, Newser User Posted Jun 14, 2011 1:57 AM CDT 18 comments Comments Isabel Chavelo Gutierrez broke off his attack, complaining he didn't feel well. (Texas police) (Newser) – A knife-wielding, overweight sex offender dropped dead while raping a 77-year-old Texan woman. Isabel Chavelo Gutierrez broke off his attack to complain he wasn't feeling well—then keeled over. The victim ran from the house, and by the time police arrived, Gutierrez, 53, was dead. Investigators believe he died of a heart attack. He had ridden two miles by bike to reach the home of his victim, whom he had apparently picked out the previous day at a local post office, reports the Corpus Christi Caller. He was on parole at the time of the attack for crimes including the sex assault of a 7-year-old child.