Diontae Harper, 25, in a plea deal, admitted that he and another man shot and killed the victim who was sitting inside at a gas station in the 8600 block of South Halsted Street in Auburn Gresham on May 13,

A 40-year-old man was killed in the shooting following a quarrel at the gas station on Stony Island Avenue. Sara Machi reports.

The unidentified 40-year-old man was arguing with someone when he was shot several times and declared dead at the scene, Chicago police said.