Appeals for public help follow failed DNA matching attempts to identify perpetrator of crimes in city's eastern suburbs from 1985-2001 A global manhunt is underway for a prolific sexual predator believed to be responsible for 27 actual and attempted rapes in Sydney going back 30 years. The man, believed to be aged between 45 and 64, committed the "blitz attack" rapes in a 16-year spree between 1985 and 2001, police said.