Season 20

When 8 months pregnant Laci Peterson went missing on Christmas Eve 2002, her disappearance became a shocking national story. Scott, convicted of her murder 15 years ago, now has grounds for an appeal. Did Scott receive a fair trial?

An attractive woman witnesses her ex-boyfriend’s shooting, but can’t remember what happened, raising questions about suicide, stalking and split personalities.

When a daughter discovers her parents' dead bodies within weeks of two other family members' murders, investigators wonder if the family is being targeted or if it could be an inside job.

A body encased in concrete leads to questions about a former sheriff's deputy and her boyfriend's ties to law enforcement.

When a body is discovered in the woods, authorities ask if he's the victim of revenge from an ex-girlfriend, her over-protective brother or her 14-year-old son.

A deadly shooting raises questions about an elderly man's business dealings and his friendship with a much younger woman.

While a community searches for a missing businesswoman, police uncover a shocking dispute with a money-hungry relative that they hope will lead them to a killer.

A young mother claims she was caught up in her boyfriend's murderous plan, but is she an innocent victim or a killer?

They say deaths come in three, but when a young woman falls ill after eerily similar deaths of her father and brother, suspicion turns to a family member and the limits of a mother's love.

In a shocking turn of events, a mother must face her demons when her daughter is left for dead after a vicious murder.

A woman finds her husband dead and proclaims her innocence, but questions about his wealth, a suspicious fire and her scandalous past raise red flags.

A foreclosure leads police to a concrete grave and a twisted plot of deception, fraud and murder, as one woman goes to extraordinary lengths to avoid justice.