USA Today Doing A Bang-Up Job

They keep expanding their data dump on mass murders:

While only about 1% of all murders nationally, mass killings still happen frequently. The FBI counted 172 cases of mass killings between 2006 and 2011....

Public massacres like Newtown account for 1 in 6 mass killings

Breakups, estrangements and family arguments make up the majority of cases, though unrelated victims may be caught in the crossfire....

THE MAJORITY OF MASS KILLINGS ARE FAMILY-RELATED

They show that mass murders are 23% other than guns.

NEARLY 3 OUT OF 4 OF THE GUNS INVOLVED WERE HANDGUNS

GUNS AT HAND

A killer wielding a multiple-magazine assault rifle is the exception. More typically, the closest available weapon is used. These are the guns killers carried with them, regardless of whether it was used. Stashes in cars, at home, etc. are not included.

 OFTEN A MASS KILLING INVOLVES A FAILED SAFETY NET

Ineffective protective orders, gaps in the mental health system, immigration bureaucracy and other lapses have been implicated in many cases.

They have a map of mass murders since 2006, and curiously while the Democratic coasts are covered with red dots, and curiously, Idaho doesn't have any.