Zimmerman has pleaded not guilty to second-degree murder and claims the shooting was self-defense under the state's "stand your ground" law. Zimmerman and Martin got into an altercation last February inside a gated community in Sanford, Fla.

Martin's parents and supporters claim that the teenager was targeted because he was black and that Zimmerman started the confrontation that led to the shooting. Zimmerman's father is white and his mother is Hispanic.

The local prosecutor recused himself from the case, prompting Gov. Rick Scott to appoint special prosecutor Angela Corey, who charged Zimmerman in April with second-degree murder.

Zimmerman and his wife discussed the amount of money raised from the website and Zimmerman spoke in code to tell his wife how to make fund transfers, according to the transcript. The code referred to amounts of "$15" in place of "$150,000."