Washington Park on Chicago's South Side was the scene of a mass shooting late August 30 that left one dead and 14 wounded, the largest mass casualty shooting in Chicago this year, with no suspects identified by the following morning.

Chad Hickman, 39, killed five people across three Missaukee County locations on August 14 before dying from a self-inflicted gunshot wound in a wooded area near Whitlock Lake.

A mass shooting at a private residence in Prospect Hill, North Carolina killed multiple people on August 5, leaving NCSBI investigators working a scene with no confirmed motive and no outstanding public threat.

Three people were killed Saturday at a brand-new In-N-Out Burger in Twin Falls, Idaho, when gunman Chad Williams opened fire before dying from a self-inflicted gunshot wound; motive remains unknown.

Three people died and four were wounded, including a toddler, in a gunfight among rival parties at Seattle's Bite of Seattle festival on July 26; one teenager was detained and a second suspect remains at large.

A targeted shooting across three East St. Louis locations on July 12 killed five members of the May and Thompson families, with two juvenile suspects detained within hours.