Deadspin is collecting video and still shots and doing a Zapruder-like investigation. It's pretty good. (Link in tweet or here.)This is the closest we've gotten to finding the beer-throwing Blue Jays fan: https://t.co/1ulcihrdxT pic.twitter.com/W81eptrGjJ— Deadspin (@Deadspin) October 5, 2016
Edit: Someone else has a different theory.