Dorothea Helen Puente (née Gray; January 9, 1929 – March 27, 2011) was an American convicted serial killer. In the 1980s, she ran a boarding house in Sacramento, California, and murdered various elderly and mentally disabled boarders before cashing their Social Security checks. Puente's total count reached nine murders; she was convicted of three and the jury hung on the other six. Newspapers dubbed Puente the "Death House Landlady".
