One punch can kill.  My son didn't die from a punch to the head but it caused him many symptoms.  Like depression, memory loss, swelling on the brain, PTSD, Anxiety.  Post concussion symptoms that can last months as well.  If we know all this information why isn't the government making medical teams do more to prevent what happened to my son Cory.  It is time for change the law needs to change for head trauma.  Make it matter sign my petition for change.