The boy suffered a wound to the face, and friends took him to the University of Chicago Medical Center, where his condition was stabilized. The woman, Monterae K. Hardin, was shot in the back and was pronounced dead at 7:06 p.m. at the same hospital, the medical examiner’s office said. A Saturday autopsy determined Hardin died of a multiple gunshot wounds, said the medical examiner’s office, which ruled her death a homicide.