(Villa Park, IL) — The family of a teenager shot and killed by a DuPage County sheriff’s deputy near Villa Park believes the shooting was unjustified. Authorities say the deputy fired his gun at 17-year-old Trevon Johnson early Monday while responding to a domestic violence call at a home near Standish Lane and Ardmore Avenue. An attorney for the teen’s family claims Johnson was unarmed. State police are investigating the incident.