1. Three weeks after Derek Medina, 31, was arrested for confessing to killing his wife and posting her picture on Facebook, he pleaded not guilty at his arraignment in Miami-Dade Circuit Court.
2. Medina was formally charged with second-degree murder with a deadly weapon, child neglect, and discharge of a deadly missile. A grand jury is set to meet next month and at that time prosecutors may seek a first-degree murder charge against Medina.
Medina with his attorney Mauricio Padilla (left) at his arraignment on Thursday, Aug. 29.