Miss Marple would be shocked. Iran's suspected first female serial killer says she was inspired by Agatha Christie's murder mysteries to lure old ladies into her car and strangle them, police say. The 32-year-old suspect, Mahin, is accused of killing at least six people and hiding her tracks through tricks learned in Christie's novels, which are very popular in Iran. She targeted elderly and middle-aged women, luring them into her car at shrines where they had been praying and then giving them fruit juice spiked with anesthesia. When the women passed out, Mahin strangled them and then stole their jewelry and money to help pay down her debts, police say.