Black Widow, which will air on Sunday, September 15 on Sky Documentaries, will show how Thompson used Lonely Hearts columns to prey on a number of husbands and lovers

Black Widow killer Dena Thompson is the subject of a new Sky documentary which details the murder of her husband and how she conned other men. Over a span of 20 years, Dena Thompson orchestrated a relentless campaign of fraud, deception, bigamy and murder.