(STMW) –Three people were killed and at least 22 others have been wounded in shootings across the city since Friday evening.

The most recent fatal shooting happened Saturday afternoon on the North Side.

William Lewis, 28, was standing on the street in the 1300 block of West Devon Avenue about 3:20 p.m. when someone approached on foot, produced a weapon and shot him in the back, police said.

Lewis, of the 4700 block of North Hermitage Avenue, was taken to Presence Saint Francis Hospital in Evanston, where he was pronounced dead at 3:58 p.m., authorities said.

Police said the shooting may have been gang-related.

Early Saturday, a 50-year-old woman was seriously injured and her son was killed in a domestic-related shooting in a Chicago Lawn neighborhood apartment on the Southwest Side.

About 1:15 a.m., a 47-year-old man got into an argument with a mother and son in the 6200 block of South Rockwell Street, left the apartment, then returned with a gun and shot both people in the chest, police said.

Adarrius Thompson, 27, was dead at the scene, according to the Cook County Medical Examiner’s office. He lived in the block where the shooting happened, authorities said.

His mother was taken to Mount Sinai Hospital in serious condition, police said.

The exact relationship between the 47-year-old — who is not in police custody — and the two others was not immediately known, police said.

Friday night, a man was killed and three other people were injured in a possible drive-by shooting shortly after 8 p.m. in the Austin neighborhood.

The shooting happened in the 5200 block of West Quincy Street, police said.

Damien Bryant, 32, was shot in the head and pronounced dead at the scene at 8:13 p.m., according to police and the medical examiner’s office. Bryant lived in the block where the shooting happened, authorities said.

A 30-year-old woman who suffered multiple gunshot wounds in the shooting showed up at Loretto Hospital and was later transferred to Stroger Hospital in “stable” condition, police said.

Another male, whose age was not known, was shot in the right arm and refused medical treatment, police said. He did not cooperate with authorities, police said.

A 41-year-old man took himself to West Suburban Medical Center in Oak Park with a gunshot wound to his hand, police said. He was listed in “stable” condition.

Additionally, a 37-year-old man was taken from the scene of the shooting to West Suburban with a broken foot, police said. He was listed in good condition.

Police believe the shooting may have been a drive-by attack.

The most recent nonfatal shooting happened about 1:15 a.m. Sunday in the North Lawndale neighborhood on the West Side.

A 16-year-old boy was standing on a sidewalk in the 3600 block of West 15th Street when a male walked up, pulled out a handgun and shot him in the leg, police said. He was taken to Mount Sinai Hospital in “stable” condition, police said.

Saturday evening, a 19-year-old man was shot in both legs near Midway Airport in the West Elsdon neighborhood.

A friend drove him to Mount Sinai about 7 p.m. The man told police he had been shot in the 4500 block of West 58th Street. He was listed in good condition early Sunday.

At least 16 other people have been wounded in other citywide shootings since 6 p.m. Friday.

(Source: Sun-Times Media Wire © Chicago Sun-Times 2014. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)