Statistically, the odds that any given rape was committed by a serial offender are around 90 percent, " Lisak said. "The research is clear on this. The foremost issue for police and prosecutors should be that you have a predator out there. By reporting this rape, the victim is giving you an opportunity to put this guy away. If you decline to pursue the case because the victim was drunk, or had a history of promiscuity, or whatever, the offender is almost certainly going to keep raping other women. We need cops and prosecutors who get it that 'nice guys' like Frank are serious criminals.