Cash App founder Bob Lee’s fatal stabbing in San Francisco sparked talk of a possible random robbery gone wrong, but police and his loved ones almost immediately suspected that wasn't the case.
Just a year after Chad Daybell and Lori Vallow met, four people would be dead in a story Dateline correspondent Keith Morrison dubbed "as strange and disturbing as any we have ever told."
Taylor Wright was hoping to start a new chapter with her girlfriend when she disappeared, but she was never seen alive again after a day out with "friend" Ashley McArthur.
After an elderly socialite vanished from her New York City brownstone, Sante Kimes and her son Kenny were arrested, revealing decades of crime, deception and murder.
Kelly Connell's mom and brother Joseph Connell conspired to replace the diamonds in her engagement ring with fakes, which initially led investigators to mistakenly believe she was responsible for two murders.
Jimmy Allan told police he found his wife hanging from an extension cord in their Michigan basement and she tried to "kill herself," but investigators discovered Amy Allan didn't take her own life.
O.J. Simpson's sensational double murder trial, where he stood accused of killing Nicole Brown Simpson and Ron Goldman, altered the lives of nearly everyone involved. Find out where the key players are today.
After Bianca Rudolph was fatally shot on her last day of an African safari, scandalous details emerged about her husband, Lawrence "Larry" Rudolph, who ran a successful Pennsylvania dental franchise.
After Gary “Big Daddy” Farris disappeared, his remains were found on his family's estate in Alpharetta, Georgia, kicking off an investigation that unveiled "greed"-motivated family rifts.
A woman known to her film co-stars as Wyn Reed, whose real name was Aisling “Tucker” Moore-Reed, played a convincing on-screen killer — and turned out to be one in real life too.
When LaNell Barsock was found dead in the garage of her Palmdale home, authorities initially focused on her boyfriend before realizing they were headed down the wrong path.
Career criminal Charles Manson may have lured his followers in with love and acceptance, but he'd later turn to violence to control those in his midst.
Charles Manson lured his followers in with the promise of an idyllic life centered on free love and acceptance, before indoctrinating them and convincing some of them to kill.
Did Charles Manson believe the Beatles were sending subliminal messages through one of their hit albums or were the brutal murders of pregnant actress Sharon Tate and others really about self-preservation?
Charles Manson wasn't the only one in his family to serve time behind bars. His mom, Kathleen Maddox, also spent three years in a West Virginia prison when he was a child.