Whether you're a fan of Piers Morgan or not, you may still be intrigued by this documentary series which sees him travelling across the USA to meet some of America's most notorious female murderers in an attempt to discover what drove them to kill. In tonight's concluding episode, Piers will sit down for an exclusive, first ever interview with Shelia Davalloo, who was convicted of murdering her colleague Anna Lisa Raymundo in 2002. However, she has not yet begun her 50-year sentence for this crime as first, she must finish the 25 years she was given for the attempted murder of her husband. It seems Anna Lisa’s boyfriend was also Sheila’s on-off lover and Piers soon uncovers a story of lust, jealousy and obsession as the murderess speaks about her crimes for the first time in 14 years.