06/25/2012 11:15 am ET

Chicago Shootings: Tyquan Tyler, 13-Year-Old, Among 4 Killed, Dozens Hurt Over Weekend

A 13-year-old boy fatally shot in the city's Woodlawn neighborhood early Sunday was one of two teens fatally shot over a Chicago weekend where four were killed and at least 29 others hurt in shootings.

Tyquan Tyler was attending a party with his older sister early Sunday where a fight broke out, Fox Chicago reports. Police say Tyquan ran away from the altercation, but was struck by gunfire and killed.

Tyquan died in his mother Sandra Tyler's arms, the Chicago Tribune reports.

"I held him in my arms on the sidewalk and talked to him while he was fighting for his life," Tyler told the Tribune of her son, who was to begin eighth grade in the fall. "I regret letting him go to the party. He was my baby — so loving and respectful."

Two other teens -- ages 14 and 15 -- playing basketball in the 2400 block of East 74th Street were wounded by gunfire Sunday evening, ABC Chicago reports.

Earlier in the weekend, Antonio Davis, 14, was found dead at the scene of a possible drive-by shooting in the city's Hamilton Park neighborhood around 8:40 p.m. Friday.

Also killed was Hansen Jackson, 29. Jackson was shot in the chest multiple times in the 3700 block of West Chicago Avenue, according to CBS Chicago. A person of interest is being questioned in his death.

Chicago Police Superintendent Garry McCarthy told ABC on Sunday, while participating in the Pride Parade, "We still have an unacceptable level of violence in this city."

"The fact is we are making incremental progress on it and we're going to continue to do that. We can't change it overnight," McCarthy continues.

On Monday, 60 churches are planning to partner with Chicago Public Schools for the formation of a Safe Haven program that will offer a safe place for youth to spend time, learn and participate in workshops on issues like anger management for some 2,000 students, NBC Chicago reports.

Violent crime costs Chicago roughly $5.3 billion annually according to a study from the Center for American Progress, which analyzed both direct and indirect costs stemming from violent crime across eight U.S. cities.