CHICAGO (STMW) -- A South Side man has been charged with a fatal shooting inside a Portage Park neighborhood store over Memorial Day weekend on the Northwest Side.

Florin Mulosmani, 24, faces one count of first-degree murder for the attack that happened about 5:15 a.m. May 28 in the 6300 block of West Montrose Avenue, according to Chicago Police.

Mulosmani and another man got into a fight with 23-year-old Damien Cionzynski, who was then shot in the head and pronounced dead at the scene, according to police and the Cook County medical examiner's office. Police did not say if Mulosmani pulled the trigger.

Cionzynski lived in the 4400 block of North Nashville Avenue in Harwood Heights. Mulosmani is from the 1900 block of South Grove Street, police said.

A judge ordered him held without bond at a Saturday hearing, according to the Cook County sheriff's office. He is due back in court Monday.

Cionzynski was among six people killed and 63 wounded in shootings over the holiday weekend.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2016. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)