Jun 28, 2013 2:42 PM by NBC News
FLORIDA (NBC News) - The George Zimmerman murder trial continued with another important witness this morning.
John Good, a former neighbor of Zimmerman, testified that he witnessed the fight that led to Trayvon Martin's death.
Good says he saw a "tussle" and heard someone call for help.
That's when he called police.
"There's a black guy down it looks like he's been shot and he's dead," Good told a 9-1-1 operator.
Zimmerman has pleaded not guilty to second degree murder saying he acted in self-defense.
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