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Jury Selection In Facebook Killer Trial

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MIAMI (CBSMiami) - Jury selection got underway Tuesday for the first degree murder trial of Derek Medina.

Medina reportedly shot and killed his 27-year old wife, Jennifer Alfonso, on August 8, 2013, in their South Miami home while Alfonso's daughter was upstairs.

Medina then posted a photograph of her dead body on Facebook, with a caption that read, in part: "I'm going to prison or death sentence for killing my wife."

During questioning by the police, Medina claimed Alfonso pulled out a knife. He said he was able to disarm her and placed the knife back in the kitchen drawer. And that's when he claims she attacked him again.

Investigators said Medina told friends he would kill Alfonso if she ever cheated or threatened to leave. Medina told police she had threatened to leave him that day.

Medina's attorneys plan to argue self-defense and have said they plan to prove he suffered from "battered husband syndrome."

However, prosecutor J. Scott Dunn, asked the judge to be able to balance that testimony by showing jurors videos posted to YouTube, which portray Medina boxing in what appears to be a training studio.

State prosecutors raised concerns about dragging the victim's name through the mud in the course of the trial, including allegations that she was a devil-worshipper and had disturbing spiritual beliefs.

Judge Yvonne Colodny told defense attorneys they could only bring it up if they could prove it was relevant to the moment that led up to the shooting.

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