Juana Barraza was born in 1956. Her mother was an alcoholic who traded her own daughter to a man for three beers.
That man repeatedly raped Barraza, who gave birth to four of his children.
Experts believe that Barraza began her killings sometime around 1990. Her victims were always women over 60—typically ones who lived alone.
Witnesses led the police to believe the suspect was a male dressed in women's clothes due to Barraza's masculine features.
Fingerprints taken from Barraza linked her to 10 murders, but at least 40 more were suspected. Barraza confessed to four murders but denied involvement in all other cases.
She was tried in 2008 and found guilty on 16 charges of murder and aggravated burglary and 11 separate counts of murder. She was sentenced to 759 years in prison.