Theresa Cross Knorr, 5 times a bride and once a widow, went on trial for murdering her first husband when she was 18 years old, with a baby and another on the way. She was acquitted as the jury believed she acted in self defense. Over the next several years she would remarry 4 more times, have 4 more children, and abuse them while they were with her. She even caused the death of two of her daughters then enlisted the help of two of her sons to dispose of their bodies.
This episode discusses child abuse.
Sources for this episode:
Mother's Day by Dennis McDougal
Murderpedia - Theresa Knorr
The Cinemaholic - Is Terry Knorr Dead of Alive? How Did She Die?
The Cinemaholic - Where Are Theresa Knorr's Sons Now?
Find A Grave - Theresa Marie "Terry" Knorr Walker
Medium - Theresa Knorr: Mother Most Evil