Diana Lumbrera. Some people really shouldn't be parents. This woman killed all her children before they turned 4 years old. She also killed one of her cousin's daughters. It's all a big huge mess. Pretty upsetting, to be honest with you. 

SOURCES:
https://apnews.com/1ce34306e2e93f4c9a89a43722c18d4f 
Department of Psychology - Radforn University
An Encyclopedia of Modern Serial Killers
Article by Chip Brown - Los Angeles Times 1991
Texas Department of Criminal Justice

Support the show