USA: Was Aaron Alexis “demon possessed” or just mentally ill at the time he went on his murderous rampage?

It is one of those questions that no one will dare ask in this case – namely, was Aaron Alexis, the Washington Navy Yard shooter  ”demonically possessed” by an evil spirit at the time he massacred 12 people and injured 8 more last Monday? Doctors I try to talk to about this particular subject either refuse to discuss it altogther, get angry with me for asking the question or they hang the phone up in my ear. Read more here.