The U.S. Department of Justice's Office for Victims of Crime annually sponsors a National Crime Victims' Rights Week. In 2005, they provided a list of homicide statistics, provided here as a PDF document.
Between 1976 and 1994 an estimated 37,000
children were murdered.
The victim-offender relationship
in child murder varies with the age of the victim: In most murders
of a young child, a family member killed the child, while in most murders
of an older child, age 15 to 17, the perpetrator was an acquaintance
of the victim or was unknown to law enforcement authorities. About
1 in 5 child murders were committed by a family member.
There are 23,000 homicides each
year. 10% are committed by perpetrators under 18 years of age.