Marybeth Davis

[1] In September 1981 in Lewisburg, West Virginia, Davis's infant son, Seth, had suffered massive damage to his brain, which prosecutors believed was caused by an injection of a large amount of insulin.

Several months after the incident with Seth, on 11 March 1982, Davis's three-year-old daughter, Tegan, died of a caffeine pill overdose.

Dr. Anne Hooper, who performed the autopsy on the girl, found hundreds of capsules inside of the digestive tract, where she then concluded that the manner of death was likely a homicide.

It was reported that prosecutors believed that Davis suffered from Factitious disorder imposed on another, which is a condition where an individual would falsify sickness of their children to gain attention and sympathy.

[4] Although it was believed that Davis had caused the overdose of her son, she had previously stated that he suffered from Leigh syndrome or an unspecified growth hormone deficiency.