Forensic Files - Season 8, Episode 24 - Nailed - Full Episode
FilmRise True Crime・2 minutes read
A key witness, Helena Greenwood, was murdered before testifying at a trial, with evidence pointing to David Paul Frediani as the culprit despite his denials. Frediani was ultimately convicted of Helena's murder after DNA evidence linked him to the crime.
Insights
- Helena Greenwood, a respected research scientist, was tragically murdered before testifying at a criminal trial. Her husband, Roger, was initially suspected but cleared due to a confirmed alibi, leading to the arrest and conviction of David Paul Frediani, who stalked the couple and left crucial forensic evidence at the crime scene.
- Despite Frediani's denial of murder, DNA evidence under Helena's fingernail, not matching her own, led to his arrest. His meticulous planning, including wearing gloves to avoid leaving fingerprints, was undone by a car accident days before the murder, proving his presence in San Diego. The case highlights the importance of forensic evidence in solving crimes and how Helena's scientific work ultimately contributed to convicting her killer.
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Recent questions
Who was Helena Greenwood?
A research scientist murdered before testifying at a trial.
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