SANFORD, Fla. -

Jurors in the George Zimmerman trial have a question about the charge of manslaughter.

The jurors sent the judge a note asking for clarification on the charge after deliberating for about eight hours Saturday.

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The six female jurors began deliberating Friday afternoon on whether Zimmerman committed a crime when he fatally shot Trayvon Martin.

Zimmerman is pleading not guilty to second-degree murder. He claims he shot the 17-year-old Martin in self-defense.

Jurors have the option of considering manslaughter.