Known as the Angel of Death, Gilbert was responsible for three first-degree murders, a second-degree murder and two additional attempted murders when she was a nurse. She killed patients by injecting them with epinephrine. Gilbert is serving a life sentence.
(Source)more ABOUTAge: age 48
Birthplace: Fall River, Massachusetts, United States of America
Schools: Greenfield Community College
Juana Barraza, a Mexican wrestler known from her crimes as "La Mataviejitas" (The Old Lady Killer), strangled and killed as many as 49 elderly women in Mexico City during the 1990s until her capture in 2003. She was found guilty of 16 murders and sentenced to 759 years in jail.
(Source)more ABOUTAge: age 59
Birthplace: Hidalgo, Mexico
In 59 days, ">Allitt's killing spree became one of the notorious in British history. She was convicted of murdering four children, attempting to murder three other children, and causing grievous bodily harm to six more. She used insulin and other methods to murder these children, who were as young as seven weeks. Overall, Allitt attacked 13 children and remains in a hospital in England.
(Source)more ABOUTAge: age 47
Marybeth Tinning is responsible for the deaths of at least two- and as many as nine- of her children, all before their fifth birthdays. The killings, which occurred between 1972-85, were carried out by smothering the children with a pillow. Tinning eventually confessed to the murders of a daughter and two sons and was sentenced to 20 years to life in prison and was denied parole for a fourth time in 2013.
(Source)more ABOUTAge: age 73
Birthplace: Duanesburg, New York, United States of America
Schools: Duanesburg High School
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