Betty Neumar (November 1931 – June 13, 2011) was an American woman charged with arranging the murder of her fourth husband, Harold Gentry, who died in 1986. Al Gentry, brother of Neumar's fourth husband Harold, had urged police to investigate his death for 22 years, prior to her arrest in 2007. Following this arrest, and learning of the fact that Neumar had had five husbands in total who had all died, the case generated much media interest in the United States, who dubbed Neumar the "Black Widow". On June 13, 2011 Betty Neumar died in a Louisiana hospital of an undisclosed illness.
Betty Johnson was born in November 1931 in Ironton, Ohio to Odis and Elizabeth Walden Johnson. She graduated from South Point High School in 1949.
She was married five times: