CHICAGO (STMW) — A person of interest was in police custody Sunday morning in connection to the fatal stabbing late Saturday of a man at a family gathering at his home in the South Shore neighborhood.

The stabbing occurred about 11:50 p.m. in the 2500 block of East 73rd Street, where the victim, 32-year-old Willie Wilson, lived, police and the Cook County Medical Examiner’s office said.

Wilson and another person got into an argument during a family gathering at the home, according to a source. The argument escalated into a physical fight, during which the other person stabbed Wilson twice, the source said.

Wilson was pronounced dead at the scene at 11:55 p.m. from a stab wound to the chest, according to the medical examiner’s office.

The male offender fled but was picked up by police Sunday morning. As of about 10:30 a.m. charges were pending.

Area South detectives are investigating.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2013. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)

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