Karmelo Anthony was defending himself when he fatally stabbed Austin Metcalf because Austin was using "deadly force" ... at least that's what Karmelo's defense is saying. Closing arguments began in Karmelo's murder trial Tuesday, and the defense went first. Defense attorney Mike Howard told the jury Austin "had no legal right" to put his hands on Karmelo, or use force to remove him from the tent they were under at a Texas high school track meet. Howard described how it was raining during the