Jurors in the George Zimmerman trial are heading into their weekend with a lot of courtroom drama and conflicting testimony to digest.

Friday's action-packed session saw the prosecution rest its case, and the judge reject a defense request to acquit Zimmerman of second-degree murder in the fatal shooting of 17-year-old Trayvon Martin last year.

The mothers of both Martin and Zimmerman listened to the same 911 recording of someone screaming for help, and each said the voice was that of her own son.

Defense attorney Mark O'Mara says he'll call several of the state's witnesses back to the stand during his case, which he said could conclude next week.

He says he hasn't decided whether to again try to introduce a toxicology report showing Martin had marijuana in his system.

[Associated Press]