Starting with 1997 to 2001 there were 14 violent shootings at USA schools.
Students refered at these crimes as a criminals were at the age from 6 to 18, but mostly engaged in shooting are at middle period of adolescence - 13years. The crimes were commited in California, Florida, Oklahama, New Mexico, Georgia, Colorado and other states of America. Some wictims were shot dead and others were wounded. The reasons of this crime are criminals insanity, no responsibility for their actions and others usually caused by adults negligence.
Young criminals were sentenced to probation and others to life inprisonment.
