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When a young husband dies in a fiery car crash, investigators believe his death was a tragic accident, but when his widow seems more relieved than aggrieved, detectives make a shocking discovery.

Accident, Suicide, or Murder

Fiery Grave

On the edge of divorce, a couple's argument over custody turns deadly; the husband claims he killed his wife in self-defense when she attacked him with scissors, but a look into his past holds a deadly secret.

Cutting Ties

After a former beauty queen and mother of eight is found unconscious in her bathtub following a facelift, her death appears to be an accident; when her doctor husband is caught in a series of deceptions, it raises alarms with investigators.

A Doctor's Care

A husband comes home to find his wife dead next to their outdoor fish pond; her cause of death appears to be from a trip and fall, but when investigators follow a twisted trail of familial deceit and greed, new truths bring her death into question.

Death in Shallow Waters

When a young mother is found dead at work from an apparent suicide, her church community is shocked by the loss; however, revelations of torrid infidelity and rampant drug use lead investigators on a decade-long search for the truth behind her death.

Secrets in the Scrapyard

A husband shoots his wife across the kitchen table while cleaning a gun; he claims it was an accident, but when her colleague mysteriously dies a few days later, investigators take a closer look at the case.

A Loaded Crime Scene

A troubled Las Vegas lawyer goes to sleep early while her psychologist husband takes their daughters out to dinner; when she doesn't wake up the next morning, her family is convinced there's more to this incident than investigators initially believe.

A Mysterious Overdose

When first responders find a self-made millionaire dead in his lakeside mansion, initial signs point to a natural cause of death; as investigators probe further, they uncover a toxicological bombshell that blows the case wide open.

Drop By Drop

When a beloved wife and doting husband are involved in a bizarre car accident, only one of them survives; as inconsistencies pile up, detectives are left questioning if this really was a freak accident or a clever attempt to hide a murder.

Shattered Glass

Two young friends who are prominent in the online deaf community pursue a shared dream in the northern California wilderness; when the pact turns sour and one of them goes missing, detectives must make sense of their perilous and deadly journey.

Friend or Foe?

When a famed musician's ex-wife drowns in her new boyfriend's pool, her famous family fights for justice.

Drowning In Lies

When a 41-year-old math teacher suddenly dies at home without an official cause of death, investigators find his new wife holds the clues.

Mystery in Montebello

Exploring the unbelievable true stories of suspicious deaths by retracing the investigations from start to finish, dissecting the red flags and undeniable evidence, and strange behavior that put the tragedies in question.

S4 E20 | Fiery Grave