Death of an Estranged Father

About an hour before I was scheduled to leave work today I got called by my half-sister and was baldly told that my biological father had just died (of a heart attack). Let me preface this by saying that I have been estranged from this man since I was in my early 20s, or at least that's when I realized that my relationship with him qualified as estranged.

( Sink into sadness back behind the blank stare )