Dorothea Puente was a was a sweet-looking, grandmotherly woman who ran a boarding house in Sacramento, California and also she was a serial killer.
Puente began the business in 1980, renting out the top floor of the home, but she was sent to prison for three years for drugging her elderly tenants and stealing checks from them. Those who complained were killed and buried in her yard.
She was back in business by 1985, renting the entire house and offering rooms to elderly and disabled residents, some of whom she met while cruising bars in the area.
The case broke open in 1988, after social worker Judy Moise finally convinced police something was wrong at the boardinghouse. Moise, who worked for Volunteers of America, had referred Alvaro “Bert” Montoya, a 51-year-old mentally impaired homeless man, to stay at the boardinghouse, where Puente was known for lavishing her tenants with gifts and homecooked meals.She died on March 27, 2011 in prison in Chowchilla, California at the age of 82 from natural causes.