A summer gathering in Hammond, Indiana, ended in a deadly shooting on June 18, 2015. Twenty-year-old Wayne Rushing Jr. was shot in the left temple and died at the scene of a residence in the 1200 block of 170th Street. Two other men were wounded: Derrick Wells suffered seven gunshot wounds and was left paralyzed and blind, and Rayvon Sanders was also injured elsewhere in the house.

Witnesses at the scene identified Robert Herron, known as Pac, Packie, or Pac Man, as the person who fired the shots. Herron was reportedly seen driving a gold Ford 500 registered to his girlfriend; a neighbor placed that vehicle near the home around the time of the shooting. Herron was arrested and charged in Lake Superior Court with Rushing’s murder and the attempted murders of Wells and Sanders, based on eyewitness testimony.

What details about the night or the people involved might help explain why this gathering turned violent?