When officers arrived, they found the 18-year-old Pontiac man unresponsive, with a gunshot wound to his chest. Deputies began emergency care, then paramedics from Waterford Regional Fire Department arrived and took the victim to a hospital where he died of his injuries.

Alphonso Cooper, Jr., 19, is charged with two counts of assault with intent to murder, two counts of assault with intent to do great bodily harm, one count of carrying a concealed weapon and four coun...