A plea hearing for 31-year-old Derek Medina is set for Wednesday. Medina had previously pleaded not guilty to second-degree murder with a firearm.
Derek Medina looks on during his arraignment in Miami-Dade court Wednesday, Dec. 4, 2013, in Miami. (AP Photo/The Miami Herald, Walter Michot, Pool)
Gruesome: Derek Medina was arrested after admitting to killing his wife on Facebook and posting a grisly photo of her body lying on the kitchen floor