Robert Wagner [VIDEO] Going Public After Natalie Wood Death Investigation Re-Opened

12/13/2011 2:09 PM PST BY TMZ STAFF

For the first time since cops reopened the Natalie Wood case as a homicide investigation -- the dead actress' former husband Robert Wagner showed his face in public.

Wagner remained tight-lipped on his way into the Lyric Theater in Florida moments ago -- where the actor is set to give a Q&A on his life tonight.

Wagner's not officially a suspect in the investigation -- but there's been widespread speculation that investigators are looking into the possibility that he was responsible for Wood's death back in 1981.