Woman attempts to poison acquaintances and burn down buildings, shoots at children in a classroom, kills self

May 20, 1988 Winnetka, Illinois Laurie Dann delivers poisoned treats to acquaintances, visits an elementary school where she shoots several children, holds a man hostage, and commits suicide Dann had a long history of mental illness, including obsessive behavior and making false police reports of assault. Some of her previous babysitting clients also complained she…

The Yangzhou massacre, as many as 800,000 victims

May 20, 1645 Yangzhou, China The 10-day Yangzhou massacre begins, resulting in a death toll as high as 800,000 The Yangzhou area was loyal to the Ming empire, and when the Qing dynasty took hold soldiers eliminated potential threats, inflicted punishment for resisting the new dynasty, and made a public example out of the city.…

Man executed for the rape and murder of his sister-in-law, despite public opinion that he may be innocent

May 20, 1992 Virginia Roger Keith Coleman is executed for the rape and murder of his sister-in-law In 1982, Coleman's 19-year-old sister-in-law, Wanda McCoy, was raped, stabbed, and suffered a neck slash so severe she was almost decapitated. Coleman, a miner, was arrested and convicted on circumstantial evidence — blood on Coleman's clothing that matched…