TV Guide Investigation Discovery Friday

The case of Pat Allanson, who was spoiled as a child and would throw tantrums if not indulged. It is claimed she choreographed the shootings of her second husband's parents, forged insurance documentation after their farm was burned down, fed her husband's grandparents arsenic and posed as a registered nurse for another couple, one of whom died in mysterious circumstances

In 2000, the citizens of DeKalb County elected Derwin Brown as their new sheriff after a history of corruption. However, defeated rival Sidney Dorsey sought revenge by arranging his rival's murder and Brown later suffered fatally gunshot wounds in front of his home

The case of Charlie Kinkel. When he vanished in a remote Nevada town in July 2013, locals shunned his wife when she investigated. The discovery of a body some months later revealed a case of misplaced suspicion

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

Buying goods from the comfort of home

In 2000, the citizens of DeKalb County elected Derwin Brown as their new sheriff after a history of corruption. However, defeated rival Sidney Dorsey sought revenge by arranging his rival's murder and Brown later suffered fatally gunshot wounds in front of his home

After the death of her husband in a tragic accident, God-fearing Cindy McKay claimed she had to bend the law to pay off his illicit debts. However, authorities soon realised the 52-year-old mother-of-six was guilty of leading a life of theft, embezzlement and finally murder

A case from 1980 when a teenager went for a run around her home town in the US state of Maine. Days later, her savagely beaten body was found. Police re-examined the case when her mother intervened

Award-winning journalist Paula Zahn goes beyond the headlines in search of fascinating mysteries from within America's justice system

Amy Bruni and Adam Berry are called upon by a frightened woman wanting to know what is haunting her home. Could the activity be connected to a previous homeowner's suicide?

Award-winning journalist Paula Zahn goes beyond the headlines in search of fascinating mysteries from within America's justice system

Award-winning journalist Paula Zahn goes beyond the headlines in search of fascinating mysteries from within America's justice system