The data is from the Centers for Disease Control (CDC),[2] and the Federal Bureau of Investigation (FBI).
The classification of this offense is based solely on police investigation as opposed to the determination of a court, medical examiner, coroner, jury, or other judicial body.
The UCR Program does not include the following situations in this offense classification: deaths caused by negligence, suicide, or accident; justifiable homicides; and attempts to murder or assaults to murder, which are classified as aggravated assaults.
"[6] CDC: "Homicide – injuries inflicted by another person with intent to injure or kill, by any means.
"[7] WISQARS is short for Web-based Injury Statistics Query and Reporting System.
"Life imprisonment" is a common penalty for first-degree murder, but its meaning varies widely.
[1] The following list shows homicide rates by mechanism, for types where total deaths exceeded 100.