"This report contains a series of tables and figures that describe homicide patterns and trends in the United States from 1980 through 2008. It also includes overall homicide rates for 2009 and 2010 (for which detailed data are not yet available). Data in this report are from the FBI [Federal Bureau of Investigation]'s Supplementary Homicide Reports (SHR), unless otherwise noted. The SHR Program of the FBI collects yearly supplementary homicide data regarding homicides committed in the United States. Statistics in this report detail homicide trends by age, sex, and race, including homicides of children under age 5 and of persons age 65 or older. It examines the relationship between the victim and the offender, particularly in cases of intimate and family homicide. The report also examines multiple victim and offender homicides, circumstances surrounding the death, justifiable homicides, law enforcement officers killed, homicides cleared, and homicide trends by city size and weapon use."
Bureau of Justice Statistics Report No. NCJ 236018
Bureau of Justice Statistics: http://www.bjs.gov/