Snapped: Killer Couples - Season 4

Detective Charlie Hudson, a cunning Major Crimes detective for the St. John's Police Department, teams up with an unusual partner – Rex, a former-K9 German Shepherd, whose heightened senses keep Charlie hot on the trail of his suspects. Together, they investigate puzzling crimes, from a kidnapping which reveals a much larger conspiracy at play to an art theft murder which runs deep into the world of high society. With Charlie's deft detective work and Rex's keen canine senses, this crime-fighting pair is unstoppable.

In 1994, seventeen-year-old Isabel Baker was murdered. The crime shocked the small town of Ashford and devastated Isabel's Australian South Sea Islander community. The case was never solved, the killer never found. But in 2019, the opening of a time capsule unearths a secret that puts cold-case Detective James Cormack on the trail of the killer.

Criminal Minds revolves around an elite team of FBI profilers who analyze the country's most twisted criminal minds, anticipating their next moves before they strike again.

Contestants guess hidden phrases by guessing letters one at a time. Contestants win money or prizes, as determined by a spin of the wheel, for each correct consonant they guess. But they have to pay to see what vowels are in a puzzle. The contestant that has amassed the most winnings at the end of a game goes on to play the bonus round, in which the player can win even more -- prizes frequently seen in the bonus round include automobiles, vacations and more cash.

20/20 continues to combine hard-hitting investigative reports, newsmaker interviews and compelling human interest and feature stories.