The shooting happened around 1 p.m. in the 700 block of East 87th Street, near the Chatham Village Square mall, Chicago police said.
The victim, a 53-year-old man, was in a verbal altercation with three male offenders and one female offender, police said. One of the male offenders took out a gun and shot at the victim.
The man was taken to a hospital in critical condition and was later pronounced dead. Family identified him as Fontaine Harris.
"I seen the man on the ground, and I saw them doing CPR, and I thought, 'aw he's gone,' resident Larry Davis said. "It's a sad occasion."
Some who works nearby told ABC7 the man was a security guard for a clothing store.
"It's horrible... a man can't come home tonight to play with his family," resident Craig Davis said. "It's tragic."
The offenders fled the scene in a gray sedan, police said. No one was in custody.
Family said Harris had a 7th-degree black belt in karate, and said he taught and mentored many in martial arts. They said he was a father, a grandfather and the oldest of four siblings, who was nurturing, caring and kind.
The shooting happened as many were shopping and running errands before Christmas. Juanita Morton is a mom to a three-year-old. She is frustrated by the violence and hopes to raise her son away from Chicago.
"It's hard to survive here in Chicago." Morton said. "We see stuff like this on the daily. This ain't even nothing new to us."
No further information was immediately available. A nearby Chase Bank and DTLR clothing store were both closed a police continue to investigate.
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