SANFORD, Fla. -

The judge hearing the George Zimmerman trial denied the defense's request for an acquittal Friday.

Prosecutors then rested their case against Zimmerman, the neighborhood watch volunteer charged with fatally shooting Trayvon Martin.

The first defense witness, Zimmerman's mother Gladys, was then called to testify.

Special section: George Zimmerman trial

Watch: Live testimony

Zimmerman is charged with second-degree murder for fatally shooting the 17-year-old. He is pleading not guilty, claiming self-defense.