FL: Robbery suspect shot by own gun in Tampa home:  "Teresa Martin was having trouble sleeping early Saturday morning when she heard a loud crash at her front door.  Moments later, she said, a man with a gun stood before her in the bedroom and demanded cash.  "Give me all you've got now or you're going to die," she said he told her before he pushed her face first into the bed.  In the struggle that ensued, the gun would fire. Only it was Martin's alleged robber who would crumple to the floor, a bullet wound to the head.  Police would identify him as Leonard Denard Porter, 34, of Tampa, a man who also goes by the alias "Kool Aid" and was already sought in another home invasion. They also arrested two other suspects.  Porter remained in critical condition at a local hospital Saturday night. Acevedo and Steadman are being held without bail in the Hillsborough County jail."