On Memorial Day, May 30, 2005, 49-year-old James Donnie Swindle Jr. was one of four people killed in a brutal attack at his trailer in an industrial area of Del City, Oklahoma. The assailants fired nearly 100 rounds in what witnesses described as a blitz attack; neighbors heard heavy gunfire and saw a maroon van speed away with occupants laughing. Three others killed were Amy Wright, 26, James Alderson, 57, and Terry Smith, 56.

Authorities say the attack was carried out by a group who believed Swindle had caused a 2004 motorcycle crash that left one of their family members with severe brain damage, a belief for which investigators found no supporting evidence. The investigation tied the Postelle family and an associate to the scene; arrests followed and at least one defendant cooperated with prosecutors.

What additional local details or memories might help clarify who was in that van or what happened that night?