Forensic Files

Gun expert explains how Tex McIver could have accidentally shot his wife

48 Hours

  • Apr 29, 2018
  • 2:06
  • Short

Update: Tex McIver won his appeal for a new trial in 2022, the Georgia Supreme Court ruling that jurors should have been able to consider the lesser charge of misdemeanor involuntary manslaughter. On Jan. 26, 2024, he pleaded guilty to involuntary manslaughter in exchange for a prison sentence of eight years. With credit for time served, he could be released by mid-2025.

Prosecutors say that Tex McIver must have meant to pull the trigger and shoot his wife Diane in the back. Why? Because it can take up to 12 pounds of finger pressure to pull the trigger of that gun. Watch as former Georgia Bureau of Investigation Special Agent Bert Davis uses two bags of flour to show "48 Hours"' Maureen Maher how it's possible to accidentally pull a trigger that requires that much finger pressure.

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Brief Summary

The episode discusses gun trigger mechanics and the impact of body position on shooting accuracy.

Key points

  • The Weight of Deception. Discussion on the misleading nature of weight measurements in a trial context.
  • Trigger Pull Dynamics. Exploration of how physicality affects gun handling and trigger pulling.

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