Top homicide lieutenant: Chauvin's use of force was "totally unnecessary"

A Minneapolis homicide lieutenant with over 40 years of experience said Friday that Derek Chauvin's use of force on George Floyd was "totally unnecessary," testifying that "if your knee is on a person's neck, that can kill him."

Why it matters: Though his role is in investigation and not on patrol — something the defense emphasized — media commentators called it the most compelling testimony yet from law enforcement who have taken the stand at former Minneapolis police officer Derek Chauvin's murder trial.

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