Well, let's see. . . Did he murder someone?  Are they still dead?  Will they ever be coming back to life?  Did he try to cover up the crime, signifying consciousness of guilt?  Did he have any justification whatsoever under law, morals, ethics, or just generally accepted standards of human behavior?  Do we really care if he was off his meds, or drunk, or just having a bad day, or if his mother didn't love him enough, or that his father didn't take him fishing?  
     In order, the answers are:  Yes.  Yes.  No.  Yes.  No.  No. 
     There.  I've deliberated as much as should be required.  
     Estimated time of deliberations:  30 seconds.