Derek Medina, 31, of South Miami, is a heavy user of social media. The Miami Herald says that yesterday, he shocked South Florida by announcing on Facebook that he had shot and killed his wife before posting a photo of her twisted, bloodied body lying on a linoleum floor. “I'm going to prison or death sentence for killing my wife,” he said. “Love you guys. Miss you guys. Take care. Facebook people you'll see me in the news,” Medina wrote in a Facebook post that remained public for hours last night before the site removed his profile page at the request of police.
Even in a world accustomed to intimate details of people's lives plastered on social media, Medina's posts — which went viral — were shocking. He walked into the South Miami police station around noon Thursday, then spent the evening speaking with homicide detectives about what led up to the shooting death of his wife, Jennifer Alfonso, 26. Medina is likely to claim self-defense. His father, Derek Medina Sr., said his son killed Alfonso only after she brandished a knife. In the younger Medina's Facebook post, he did not mention a knife, but wrote: “My wife was punching me and I'm not going to stand anymore with the abuse so I did what I did. Hope u understand me.”