Killers took the lives of seven people in Chicago since noon Friday.
Five of those deaths may have been the result of an ongoing gang conflict on the West Side, according to a police source.
At least 10 other people were wounded during unrelated shootings in other areas of the city Friday night into midday Sunday.
A police source said late Saturday morning that a gang conflict that started about two weeks ago at Lexington Streets and Pulaski Road is to blame for the five slayings. Details were not immediately available about the reported conflict.
About noon Friday, Aaron Brown was with several other young people on a corner in the 3600 block of West Ohio Street when someone shot him and killed him, according to a Harrison District police lieutenant.
Brown, 26, of the 3000 block of West Washington Street, was pronounced dead at Mount Sinai Hospital shortly after 12:30 p.m., according to the Cook County Medical Examiner’s Office.
At 9:25 p.m., Jovan Richardson, 23, was inside a vehicle at Jackson and Kilpatrick when a black vehicle approached alongside his and someone inside fired a handgun numerous times, striking him at least once in the head, police said. His vehicle then crashed into a tree.
Richardson, of the 3700 block of West Lexington Street, who police said was the only person in the vehicle, was taken to John H. Stroger Jr. hospital of Cook County where he was pronounced dead shortly before 10 p.m., a medical examiner spokesperson said.
Another West Side shooting at 9:25 p.m. involved a 19-year-old man named Jonathon Banks, of the 3800 block of West Arthington Street, according to police and the medical examiner's office.
Someone shot Banks in the head at 1448 S. Trumbull Ave., and he was taken to Mount Sinai Hospital where he was pronounced dead shortly after midnight, according to the medical examiner’s office.
Someone opened fire into a parked four-door Chevrolet about 1:45 a.m. in the 2000 block of West Polk Street, killing two, police said. Officers riding in a police wagon were already in the area when they heard the shots. They responded to the Polk Street address and found the two victims inside the car.
Nicole Robinson, 37, was pronounced dead at 2:14 a.m. at Mount Sinai Hospital. She and her companion, Dennis Praten, 32, were dead on the scene, according to the medical examiner's office.
In a separate incident, a 20-year-old man was shot to death while attending a graduation party less than two blocks from his home Saturday afternoon.
Torrence Wright was at a graduation party in a vacant lot on the 5200 block of South Wood Street when someone fired several shots into the crowd, police said. One of the shots hit Wright in the head, killing him. Police said Wright had known gang affiliations.
And just after 10 p.m. Saturday, a 24-year-old man was shot to death in the Humboldt Park neighborhood.
Earl Smith was found unresponsive outside in the 4200 block of West Potomac Avenue around 10:10 p.m., police said.
He was dead on the scene.
No one was in custody in any of the fatal shootings.
In other other areas of the city, 10 other people were wounded during shootings from Friday night into early Saturday. Belmont, Calumet and Wentworth Area detectives are investigating these shootings.
On the North Side, in the Rogers Park neighborhood, two men were walking in the 1700 block of West North Shore Avenue shortly after 7 p.m. Friday when they heard a noise. One man, 39, realized he’d been shot in the leg, according to a Rogers Park District police lieutenant.
They did not see the shooter and called for an ambulance, which took him to Saint Francis Hospital in Evanston, the lieutenant said.
A girl was shot while riding a bicycle near Hoyne Park, on the south side, at about 9:45 p.m., police said. An unidentified male on a bike fired shots into a crowd in the 3400 block of South Hamilton Avenue, hitting the 17-year-old girl, who was taken to Mount Sinai Hospital. At last check, she was listed in "stable" condition.
Two boys, both aged 17, were shot during separate incidents about a half a mile apart on the south side late Friday and early Saturday. The first victim told police he was walking down the street in the 6600 block of South Drexel at 10:45 p.m. when he felt a sharp pain in his right knee, and found he was shot, police said. He was taken to the University of Chicago Hospitals where he was in good condition.
Two hours later, in the 6600 block of South Langley, the other 17-year-old was sitting on the front porch when two unknown gunmen approached on foot and fired shots in the his direction, officers said.
The boy was shot in the arm, leg and hand and was taken to Northwestern Memorial Hospital where he was in "stable" condition.
A gas station at the intersection of South Michigan Avenue and East 47th Street, was the site of another south side shooting that wounded a man and a woman at about 10:45 p.m., said police News Affairs Officer Ronald Gaines.
A shooter opened fire into the crowd, striking a 45-year-old man and a 41-year-old woman. Gaines said the man was taken in good condition to the University of Chicago Hospitals while the woman was shot in the arm and was taken in good condition to John H. Stroger Jr. Hospital of Cook County, Gaines said.
Police are also investigating an attack that wounded two 16-year-old boys that occurred just before midnight in the 1300 block of West 79th Street. Someone confronted the teens and shot them, leaving both wounded in the legs, according to officers.
They were both taken to Advocate Christ Medical Center in Oak Lawn where they were in "stable" condition.
At 2 a.m., someone shot a male in the head at South Paulina and West 52nd streets, leaving him in critical condition, according to Gaines. Gaines said the victim was taken to Stroger Hospital in critical condition.
About 45 minutes later, Chicago Lawn District police officers responded to a call about a man who had been shot in the leg at 55th Street and South Lowe, police said.