Jeantel testified that Martin told her he was being chased by a "creepy-a** cracker."

"This was a disaster," criminal defense lawyer Mark Geragos told CNN's Anderson Cooper the day Jeanteal testified. "This was the star witness, the star witness. The wheels came off and it was a train wreck. And there's no other -- there's no way to soft-pedal it."

4. The voice on the call

The mothers of Zimmerman and Martin both testified that screams for help heard on a 911 call the night of the shooting were those of their sons, respectively.

Whose voice was heard on the call was considered key for both the prosecution and defense in proving who was responsible for the shooting. If the screams were Martin's, as the prosecution contended, Zimmerman was the aggressor. If the screams were Zimmerman's, as the defense said, Martin was the aggressor.

On July 5, in a packed courtroom, the prosecution played the recording for Martin's mother, Sybrina Fulton.

When asked if she recognized the voice, Fulton said it belonged to "Trayvon Benjamin Martin."

Hours later, the defense called Gladys Zimmerman to the stand, where she testified the voice screaming for help belonged to her son.

"I know because he's my son," she said.

As a result, there was no definitive answer for jurors.

5. Testimony

The lead detective in the case, Chris Serino, was called to the stand by the prosecution.

Serino told the court that he believed Zimmerman exaggerated the number of times he was hit that night but didn't feel any "active deception."

"Either he was telling the truth or he was a complete pathological liar," he testified.

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