Derek Medina, 31, who posted an alleged confession to killing his wife on Facebook, now claims it was an act of self-defense. In a video released by prosecutors on Friday, Medina said he was arguing with his wife, Jennifer Alfonso, 26, when "she started throwing stuff, objects, towards me." These objects included towels, mascara, creams, boxes, and shoes. He said he was hit in the face a few times.
Medina, who pleaded not guilty to a second-degree murder charge, sounded calm and polite when he was interrogated by detectives, nine hours after he allegedly killed his wife.