Chicago Police shot and killed a teenager Saturday night. Officers say he was a suspect in another shooting. His mother says he was an innocent victim.

At least five people were killed and another 11 were wounded in overnight gun violence in Chicago, bringing to more than 50 the number of people shot in the city over the holiday weekend so far, according to police.

Five of the people were shot by police over 36 hours, one of them a 16-year-old boy who was killed as he hid under a car in an alley in Gresham Saturday night, according to authorities.

Police said the boy was holding a gun, and that officers also recovered guns in three of the other shootings. In the fifth incident, a man in Rogers Park was killed after he claimed to have a gun but did not, according to authorities.

Among other fatal shootings since Saturday:

-- A 19-year-old man was killed as he drove in the Uptown neighborhood around 12:20 a.m. Sunday, authorities said.

The driver was with another man and a woman and were on their way to meet another woman when shots were fired at their Malibu at Montrose Avenue and Malden Street, police said, citing preliminary information.

The Malibu sped off west on Montrose and stopped at Paulina Street -- about two blocks from Mayor Rahm Emanuel's home -- and flagged down a police officer, according to authorities.

The driver suffered several wounds to the back and chest, and was taken Advocate Illinois Masonic Medical Center, where he was pronounced dead. Police and authorities identified the man as Kezon A. Lamb, 19, of the 4100 block of West 127th Street in Alsip.

The woman in the car suffered cuts, possibly from metal in the car or shards of glass, police said. The other man was not hurt.

The Malibu sat in the middle of Montrose and Paulina with at least seven bullet holes in its front and rear driver's side windows. Officers cordoned off the scene at Montrose and Malden and walked through a small garden to look for bullet casings.

No one was in custody.

-- About an hour earlier, a 25-year-old man was killed while riding a bicycle in the 10400 block of South Normal Avenue in the Fernwood neighborhood on the Far South Side.

Someone opened fire from a passing silver sedan as the man, Anthony Hobson, was about a block north from where he lived. Hobson was pronounced dead at Roseland Community Hospital about 12:10 a.m.
-- Around 7:30 p.m. Saturday, an 18-year-old man was shot in the chest in the 6500 block of South Seeley Avenue, said Police News Affairs Officer Thomas Sweeney. He was taken to Advocate Christ Medical Center in Oak Lawn, where he was pronounced dead.

Authorities identified him as Shaquille Ross of the 200 block of West 95th Street. He was pronounced dead at 8:09 p.m., police said.

-- Deandre Brown, 23, of the 9000 block of South Mackinaw Avenue, was shot in the 8700 block of South Houston Avenue about 10:20 a.m. Saturday, officials said. He was pronounced dead at Northwestern Memorial Hospital at 11:38 a.m., according to the Cook County medical examiner's office.

Brown suffered gunshot wounds to the leg and the abdomen, Police News Affairs Officer Janel Sedevic said. Area South detectives were investigating the shooting.

In other recent shootings: