A SADISTIC murderer who tortured a dad-of-two and left him for dead has died in prison. Lisa Clarke, 53, was jailed for life at HMP Styal, in Wilmslow, Cheshire, for killing former solider Brian Farmer, 64, in 2013. The inmate was 41-years-old when she was sentenced to serve a minimum of 23 years behind bars. Herself…