Friends or relatives are the most likely killers

The myth is usually based on two claims: 1) 58 percent of murder victims are killed by either relatives or acquaintances and 2) anyone could be a murderer.

With the broad definition of “acquaintances” used in the FBI’s Uniform Crime Reports, most victims are indeed classified as knowing their killer. However, what is not made clear is that acquaintance murder primarily includes drug buyers killing drug pushers, cabdrivers killed by first-time customers, gang members killing other gang members, prostitutes killed by their clients, and so on. Only one city, Chicago, reports a precise breakdown on the nature of acquaintance killings: between 1990 and 1995 just 17 percent of murder victims were either family members, friends, neighbors and/or roommates.

Murderers also are not your average citizen. For example, about 90 percent of adult murderers have already had a criminal record as an adult. Murderers are overwhelmingly young males with low IQs and who have difficult times getting along with others. Furthermore, unfortunately, murder is disproportionately committed against blacks and by blacks.

Answer by John R. Lott, Jr.