A Florida law professor is gunned down in his own driveway in broad daylight. No witnesses, no immediate suspects, and no answers. For years, the case goes cold, but the deeper they dig into Dan Markel's life, the more they realize this wasn't random. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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A private investigator was reported missing by her partner after she never came home from running errands. Taylor Wright, a former police officer turned PI, was embroiled in a heated legal battle with her ex-husband over custody and finances. Wright lent her money to a friend to hold while she was handling things in court. Weeks after Wright’s disappearance, investigators found her body on a farm property; the same property she visited the day she went missing. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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First responders rushed to a Massachusetts home when a panicked woman called 911. Christine Ricci said her husband, Michael, lunged at her while she was holding a knife during a heated dispute, lodging the weapon in his heart. As investigators pieced together the evidence, Christine's self-defense story wasn't quite adding up. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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Natalie Ramstrom was found dead inside her boyfriend’s home, with her body hidden beneath garbage bags after she had been shot in the head. What followed was a yearslong mystery as Efrain Medina fled to Mexico, spent a year hiding, and then faced three trials that all ended without a verdict. In the end, Medina admitted to manslaughter and a weapons charge, but the judge still struggled to accept his plea, calling him a “killer and a coward” before sending him to prison. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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A roommate wakes to screaming and finds his best friend bleeding on the floor of their Florida apartment. Tyler Nulisch, 30, dies at the hospital hours later from a single gunshot wound. His girlfriend, Brittany Nicole Holbrook, tells detectives she was defending herself, but the details of her account keep changing. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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A culinary school was thrown into chaos when a chef was found shot to death in the kitchen where he taught. Daniel Brophy's students discovered his body just before class. His wife, Nancy Brophy, played the grieving widow, but years earlier she wrote a novel titled “How to Murder Your Husband.” Investigators soon learned Brophy’s work of fiction may have turned into reality. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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A South Carolina man made a devastating discovery when he found his fiancée dead in the living room of her Greer home. Bradley Post said Christina Parcell was surrounded by rose petals, with a strange chemical odor lingering in the house. Parcell, a vet tech at a local animal hospital, had been locked in tension with her ex-husband over their shared child — but investigators uncovered a far darker motive behind her murder. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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Indiana first responders rushed to the home of Alison and Kevin Davis after a chilling 911 call. Alison said she heard a loud noise while sleeping and found her husband at the bottom of their staircase in a pool of blood. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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First responders rushed to a raging house fire in Illinois and discovered a much more sinister crime scene once they were inside. Law enforcement found Melissa Lamesch, a full-term pregnant woman, dead in her home. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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Kali Randall was building a life with her family and expecting her second child, a daughter, when a horrific tragedy tore through her home — her own husband. Find out what happened to Kali Randall and her children on this episode of Crimes of Passion with Law&Crime’s Sierra Gillespie.

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A 40-year-old woman answered her front door one night and faced a clown. The costumed woman, seemingly friendly, let go of her balloons and opened fire, killing Marlene Warren on her doorstep. Marlene's son told police a clown killed his mom and sped off. The murder went cold for 27 years until advancements in DNA uncovered the killer. Get the full story on this episode of Crimes of Passion with Sierra Gillespie, presented by Law&Crime.

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