Watch Gacy (2003) HD Full Movie Free on SolarMovie. Watch Gacy (2003) online free. Model citizen, devoted father, loving husband and serial killer John Wayne Gacy - a man with over 30...Model citizen, devoted father, loving husband and serial killer John Wayne Gacy - a man with over 30 dead men and boys entombed in the crawl space underneath his family house. Based on a true story.