Dylan Somma, 22, of Lockport, Illinois, was shot to death on January 13, 2016. He was found unresponsive in a yard on Barry Avenue in Lockport Township after being shot once in the chest and was taken to Silver Cross Hospital in New Lenox, where he was pronounced dead shortly before midnight.

Will County investigators said Somma had been in the area to buy drugs when an altercation led to the shooting. An arrest later followed: Tariq Pinnick, a former Lewis University student, was arrested in Georgia, extradited to Illinois, and ultimately pleaded guilty to second-degree murder, saying he shot Somma while under an unreasonable belief he was acting in self-defense. Pinnick received a 17-year sentence under a plea agreement.

Somma’s past included being mistakenly taken into custody in 2014 in the investigation of 15-year-old Briana Valle’s murder; he was not the killer. That case later identified Erick Maya as the perpetrator. Does anyone have information about Somma’s movements in Lockport on January 13, 2016, or about the people he was with that day?