George A. Lewis, 36, was shot during an altercation that broke out at a party he was hosting on Spruce Street in Bridgeton, New Jersey, on the night of February 15, 2014. He was taken to a nearby hospital but died from a single gunshot wound, leaving family and neighbors confronting a sudden loss.

The Bridgeton Police Department’s Criminal Investigation Bureau and the Cumberland County Prosecutor’s Office opened an immediate investigation and sought information from the public. More than a year later investigators identified Michael Russell, a former Bridgeton resident who was already incarcerated on unrelated charges, as the suspect. In June 2015 Russell was charged and later pleaded guilty to aggravated manslaughter; he received a 10-year prison term and additional time for hindering apprehension and resisting arrest.

What details about that February 2014 altercation might still be missing that could help explain how the dispute escalated to deadly violence?