A 27 year old man, presumably a Ghostbusters fan (who else would dress up as a Ghostbuster with two pals, if not a fan?), was attacked on Halloween by another man, after a rugby match.
Police have had no luck finding the attacker, who got off the train immediately after sucker-punching the Ghostbuster.
Currently, they are looking for another, different man, seen on CCTV, who might help with the investigation.
Who attacks a Ghostbuster on Halloween, honestly? Oh right, drunk rugby fan. Right.