http://www.ncjrs.org/html/ojjdp/201628/contents.html
Carl McCurley and Howard N. Snyder
Violent crime is always disturbing, but this is especially true when its perpetrators are youth.
About one in five nonfatal violent victimizations involves a juvenile offender, acting either alone or with others—adult or juvenile. Most victims of juvenile violence are juveniles, including 95% of the victims of sexual assaults. Nearly all victims of juvenile violence know the offender."
PDF - http://www.ncjrs.org/pdffiles1/ojjdp/201628.pdf
