Toronto Police have made an arrest in a historical sexual assault investigation. Police say the accused sexually assaulted four boys between 1969 and 1987. He used the name Alexander Thow at the time and lived in the O’Connor and Donlands area. 61 year old Ronald Lea faces numerous charges and police believe there may be more victims. Click here to see a photo of the accused. Anyone with information is asked to contact the 54 Division Youth Services at 416-808-5405, Crime Stoppers at 416-222-TIPS (8477), online at www.222tips.com, text TOR and your message to CRIMES (274637) or leave a tip on Facebook.