https://kevincooper.org/cooper-background/ (all about Kevin Cooper and the chino hills murders). https://thecinemaholic.com/where-is-lee-furrow-now/ (Lee Furrow where are they now) https://www.cdcr.ca.gov/capital-punishment/inmates-executed-1978-to-present/executed-inmate-summary-clarence-ray-allen/ (Clarence Ray Allen and Billy Hamilton) Mary Sue kitts and Frans market murders https://www.google.com/amp/s/www.sfgate.com/news/amp/Double-life-of-a-Death-Row-killer-Charismatic-2506688.php http://www.clarkprosecutor.org/html/death/US/allen1005.htm https://prodeathpenalty.com/case/clarence-allen