Irma Grese, the Mass Murderess of Bergen-Belsen, during the Belsen Trial. According to inmate testimony, Grese was fond of whipping inmates and was said to never have been without her boots, whip, or pistol at anytime. Fond of physical and emotional torture, and was said to have delighted in shooting prisoners in cold blood. Her trial took 53 days, and when the verdict was read she was found guilty. Irma Grese was executed on 13 December 1946 at 22 years of age.