A gunman rode up on a bicycle in the 5100 block of South Calumet Avenue around 7:45 p.m. Wednesday and opened fire, according to police.
Geanni Boyd was hit several times and was pronounced dead shortly after midnight Thursday, according to the Cook County medical examiner's office. He lived in the 0-100 block of East 99th Street.
The 15-year-old was shot in the wrist and was treated on the scene, police said.
In another shooting Wednesday, Jeffrey Montgomery, 24 was killed in the 7500 block of South Union Avenue in the Gresham neighborhood. He was pronounced dead at 12:01 p.m. at Advocate Christ Medical Center, about 30 minutes after he was shot.
Four other people were wounded in Chicago overnight:
• Around 9:45 p.m., a 36-year-old man standing on a sidewalk in the Jackson Park Highlands neighborhood was shot in the back by someone inside a silver four-door sedan, police said.
The shooting happened near 69th Street and Jeffery Boulevard. The man was taken to Northwestern Memorial Hospital and was stable, according to Police News Affairs Officer Hector Alfaro.
• A 29-year-old man was shot in the hip in Englewood. The man driving an SUV south on Halsted Street when he was shot at 67th Street, police said. He stopped at 69th Street and was taken to Advocate Christ Medical Center. No one was in custody.
• Earlier, in the West Chatham neighborhood, a man was shot and two other people struck with shards of glass around 10:55 a.m. in the 8300 block of South Lafayette Avenue, according to Police News Affairs Officer Veejay Zala.
One man was shot in the hip and shoulder and taken to Stroger Hospital, Zala said. The two people hit by flying glass were taken in good condition to Saint Bernard Hospital and Health Care Center, Zala said. No one was in custody for the Lafayette shooting, according to Zala.
• About 4:15 p.m., a 35-year-old man shot in the abdomen and bicep walked into Norwegian-American Hospital, said News Affairs Officer Hector Alfaro. He told police he had been shot in the 3800 block of West Grand Avenue.