Authorities issued a warrant for the arrest of Mark R. Lewis, 51, of Lakemoor, for alleged identify theft, according to a news release. Police allege Lewis was involved in identity theft and forgery of his mother's bank account.
Lewis' sister, Cathleen, was found dead in her home Wednesday. According to the coroner's report, she died from blunt head trauma due to assault. Police say there was no sign of forced entry into the unit and Lewis may have known her killer.
Mark Lewis is believed to be driving a 1999 green Ford Explorer with Illinois license plate 775 8696.
Anyone with information should call Naperville police at (630) 420-6147. Callers who want to remain anonymous may call Crime Stoppers at (630) 420-6006. A reward of up to $1,000 is being offered for information that leads to an arrest in this incident.