Someone unleashed gunfire into a group of people in the 8200 block of South Maryland Avenue.

A teen was killed and three people wounded in a shooting Sunday in Chatham on the South Side.

Dontevion Gates, 17, was among a group of 30 to 40 people gathered about 3:33 a.m. in the 8200 block of South Maryland Avenue when shots rang out, Chicago police and the Cook County medical examiner’s office said.

Gates was hit in the neck and back and rushed to the University of Chicago Medical Center, where he was pronounced dead, authorities said.

Gates’ uncle, Cornell Rhodes, wrote on Facebook that his heart is heavy with sadness.

“My nephew was taken from us it’s just a somber feeling right now,” Rhodes said. “I’m hurting more for his siblings and his mother (my sister) more than anything. No parent should have to bury their child... Truly gone too soon. Rest up Tae Tae.”

An autopsy Monday found he died of the gunshot wound to his back and ruled his death a homicide, the medical examiner’s office said.

A 20-year-old man was struck in the hand, and a 24-year-old woman was hit in the face, police said. An adult woman who was uncooperative with investigators was grazed in the arm. All three were stabilized at the University of Chicago Medical Center.

Witnesses gave varying accounts of the events leading up to the shooting, police said.

Police said no arrests have been made. Area South detectives are investigating.

Gates’ family is collecting donations online.

Read more on crime, and track the city’s homicides.