A dispute between two young men in Indiana, Pennsylvania, escalated into deadly violence on March 25, 2017. The clash began the week before and culminated during an unsanctioned IUPatty’s gathering on Oakland Avenue. Twenty-one-year-old Carlos Eduardo Recalde-Campos was shot in the torso and killed; a young woman, Samantha Riley, was also critically wounded in the attack.

Police identified 20-year-old Matthew McNevin as the shooter after witnesses and social media posts tied him to the confrontation. McNevin was seen on video brandishing a stolen handgun and declaring an intention to confront Recalde-Campos; at the scene he produced a .40-caliber handgun and fired before fleeing. Investigators say the weapon had been supplied by 20-year-old Matthew Ohler Jr., who was later arrested hiding behind a pizza shop.

McNevin pleaded guilty to third-degree murder and aggravated assault and received state prison time; Ohler pleaded guilty to conspiracy to commit aggravated assault and was sentenced to jail and probation. Did anyone who knew Carlos or was at the IUPatty’s see signs the dispute might turn violent?