I believe I read that this was the first game he had attended with his son. That suprised me. I’m not much of a sports fan, but by the time I was 12, I had gone to many ball games with my father. Maybe they have been ‘not close’ for a long time. I see the son does not use that last name. I also see no mention of a mother figure, ex-wife or ex-fiance.
It is not out of the question that this man had a psychotic break with reality and summarily chose to just ‘drop out’, vs confront some undisclosed difficulty. We all have a breaking point, our own ‘fight or flight’ responses are wired up and ready, whether we want to admit it or not.