A serial rapist is someone who commits multiple rapes, whether with multiple victims or a single victim repeatedly over a period of time. Some serial rapists target children. The terms sexual predator, repeat rape and multiple offending can also be used to describe the activities of those who commit a number of consecutive rapes, but remain unprosecuted when self-reported in research. Others will commit their assaults in prisons. In some instances, a group of serial rapists will work together. These rapists can have a pattern of behavior that is sometimes used to predict their activities and aid in their arrest and conviction. Serial rapists also differ from one time offenders because "serial rapists more often involved kidnapping, verbally and physically threatening the victims, and using