14-year old wounded in attack on four people in Chicago

Four people were wounded when a man walked up to them on a street in Chicago and opened fire. One of them was a 14-year old boy.

From the article:

A 14-year-old boy was also wounded in the attack, police said. He was shot twice in the right leg and taken to Stroger Hospital where his condition has stabilized as of early Friday.

The article did not give a motive for the shooting, or name of the victims.