Cynthia Jefferies [Edit] By Sticky Facts Editorial StaffCynthia Jefferies biography, ethnicity, religion, interesting facts, favorites, family, updates, childhood facts, information and more:When did Cynthia Jefferies die?March 3, 1983Why did Cynthia Jefferies die?Suicide-Drug overdose Tags: death day 3death month marchdeath year 1983 Suggested Posts Adam Driver Facts Miley Cyrus Facts Margot Robbie Facts Kit Harington Facts Madonna Facts Michael Schumacher Facts Jennifer Lopez Facts Arnold Schwarzenegger Facts