Killer App tells the story of two families whose daughters got involved in online relationships that became a matter of life or death. It's a story that will resonate with millennials, teenagers and parents, who, thanks to so-called "parent proof" platforms, often don't know what their kids are doing on their phones, laptops, tablets or computers until something goes terribly wrong.
When an elderly millionaire is found dead in a freezer, her decades-younger companion is brought up on murder charges; the movie inspired by the story, ``Bernie.''
A young woman is murdered, police thought her killer was on the run ... or was he? Correspondent Tracy Smith investigates.
A Texas-sized case of love, infidelity, road rage and possibly murder. "48 Hours" correspondent Peter Van Sant investigates.
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