Jurors see gun used in shooting during Derek Medina murder trial

South Florida man fatally shot wife before posting picture of body on Facebook

MIAMI – The murder trial for a South Florida man who claims that he killed his wife in self-defense before posting a photo of her corpse on Facebook continued Friday as the lead crime scene investigator showed the jury some of the key pieces of evidence.

Derek Medina is accused of fatally shooting Jennifer Alfonso, 27, in the kitchen of their South Miami townhouse in August 2013. Police said Medina uploaded a photo of Alfonso's body on Facebook after the shooting.

Lead crime scene investigator Yvonne Garcia provided jurors with an up-close look at the gun that Medina used to shoot his wife, as well as the shell casings collected at the scene. She also showed jurors the knife that Medina claims Alfonso used to threaten him.

Jurors also listened to testimony from Miami-Dade police firearms expert Megan Roberts and lead Detective Jonathan Grossman, who recalled the recorded conversation that he had with Medina hours after the fatal shooting and the condition of the body.

"She was bent at her knees," Grossman testified. "The arches of her feet were flat on the ground, she was leaning backwards and her head was up against the cabinet doors."

Jurors also got to watch the interrogation interview after Medina surrendered to police. In the video, Medina said Alfonso was throwing things at him, prompting him to pull out the gun.

"I'm not a killer," Medina said in the video. "It was self-defense."

During his testimony, Grossman said he remembered Medina telling him that he took the picture of Alfonso's body and left her 10-year-old daughter hiding upstairs.

In the video, Grossman asked Medina why he took the picture.

"So the family would know and be notified and they can rush over there and get my stepdaughter," Medina said.

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Derek Medina is accused of killing his wife and then posting a picture of her body on Facebook.


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