Man Reportedly Kills His Wife And Posts Photo Of Her Dead Body To Facebook

SOUTH MIAMI, FL - A South Florida man who authorities say fatally shot his wife -- and apparently then posted a photo of her body on Facebook -- was charged with first-degree murder Thursday night after turning himself in. Miami-Dade police said in an arrest affidavit that Derek Medina, 31, said he shot Jennifer Alfonso, 26, at their South Miami home after she said she was "leaving him." When officers responded to the home, they found Alfonso's body, as well as her 10-year-old daughter, who was unharmed. According to the affidavit, the 6-foot-2, 200-pound Medina said the couple became involved in a heated argument in an upstairs bedroom when he armed himself with a gun and pointed it at her. He said Alfonso left the bedroom, returning later to say she was leaving him. He says he went downstairs and confronted her in the kitchen, when she began punching him. He claims he went back upstairs to get his gun and confronted her again, at which time she grabbed a knife. Medina said he was able to disarm her and put the knife in a drawer, but that when she began punching him again, he shot her several times, the affidavit says.Police confirmed that Medina was in custody on Thursday on suspicion of homicide and that the 24-year-old Alonso was the victim. The news release sent to reporters does not address whether he posted a photo of Alfonso's body on Facebook, and reads as follows: "The Miami-Dade Police Department, Homicide Bureau, is investigating an incident that occurred in the City of South Miami.Medina appears to have uploaded a photograph of his dead wife to his Facebook account. At the time of writing it has been shared 173 times (the photograph is not included or linked to in this post). As NY Mag's Joe Coscarelli notes, friends don't seem to know how to react.His Facebook profile was removed about five hours after the shooting, according to ABC News' Miami affiliate WPLG-TV. Authorities have so far declined to discuss the Facebook postings or say whether Medina made them. Alfonso's 10-year-old daughter from a previous relationship was at the residence today with her mother's body and was unharmed, according to police.