09/21/2011 11:58 am ET Updated Nov 21, 2011

Steven McGee, 15, Shot By 14-Year-Old Boy, Police Allege

A 14-year-old boy has been charged in a fatal shooting of a 15-year-old boy Monday afternoon in Washington Park.

Steven McGee, who police originally said was 17, was shot several times on the 6000 block of South Prairie Avenue at about 5:50 p.m., according to the Chicago Sun-Times. Police believe the shooting was motivated by an internal gang conflict, as the Washington Park neighborhood has seen several gang-related shootings recently.

A man passing on a bicycle warned McGee as he approached a nearby alley that there were "guys with guns," police told the Chicago Tribune. A witness identified a 14-year-old boy as the person who emerged from the alley moments later and shot McGee in the upper body and head.

Last weekend, a 17-year-old boy was shot to death on a front porch in Marquette Park by a man with a T-shirt wrapped around his face, according to the Tribune. Police have not identified a motive.

The recent slayings compound a summer with particularly high incidences of juvenile gun violence, which prompted an anti-violence march in late August through the Englewood neighborhood, where a pregnant 17-year-old named Charinez Jefferson had been fatally shot. During the march, 14-year-old Joseph Price was killed in a shooting.

The teen arrested is expected to appear in Juvenile Court today, police told the Tribune. McGee was in 8th grade at Ross Elementary School.