In 1986, Sherri Mae Rasmussen was attacked, beaten and shot to death in her Los Angeles home. Her father, Nels Rasmussen, was convinced Sherri’s husband, John Ruetten, was not involved. For more than two decades, Nels tried to get the police to focus on John’s ex-girlfriend, Stephanie Lazarus, a decorated Los Angeles police detective. Detectives trailed Lazarus to obtain a DNA sample and the results were stunning: the DNA from Sherri’s bite mark and that of Stephanie Lazarus matched. “48 Hours" correspondent Maureen Maher reports. This classic "48 Hours" episode last aired on 5/26/2012. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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How to make sense of this incomprehensible tragedy? After the discovery of juror misconduct in the first trial, Megan is tried a second time. Detective Brian Byerson has also been in touch with Ashley Hargan weekly since her mother and sister were killed. She not only testified at trial; she made some dramatic moves after she discovered the truth.

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The bound bodies of four women are found along a desolate stretch of beach. Disturbing new details about the architect police say is a serial killer. Erin Moriarty reports.

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Three young women murdered and the hunt for a serial killer named Hannibal. Harold Dow reports.

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On July 19, 2007, Timothy MacNeil, a prominent defense attorney, was shot to death in his San Diego home. The only witness was his 17-year-old stepdaughter, Brae Hansen, who was found tied up at the scene. She told police that a masked gunman had broken in and committed the murder but had left her alive. Further police interrogation of Hansen led to her arrest as a suspect, and she later implicated her brother, Nathan Gann, in the murder. “48 Hours" correspondent Tracy Smith reports. This classic "48 Hours" episode last aired on 6/19/2010. Watch all-new episodes of “48 Hours” on Saturdays, and stream on demand on Paramount+.

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Detectives finally arrest a suspect in the Hargan family murders. But at trial, defense attorneys present a new theory for how the killings might have happened. According to one scenario based on a forensic specialist's digitally reconstructed crime scene, Helen could have reached the rifle trigger with her toe. And that theory might cast enough doubt to throw the entire case into question.

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A crime scene investigator is gunned down in broad daylight. The harrowing scene is captured on surveillance video. Who pulled the trigger? Erin Moriarty reports.

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A Texas family is gunned down in a deadly home invasion — but the shooter unknowingly leaves behind a witness. Erin Moriarty reports.

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