I'm lucky in that I've only ever been a social drinker and I've never been a gambler so I can't begin to imagine the horrors of having to admit that you are an alcoholic or addicted to gambling. For Brian Rice to have gotten his addiction under control and gotten his managerial career back on track says so much for the guy and he should be applauded for his efforts. To have some anonymous arsehole in the crowd shouting abuse at him and upsetting him to the extent that he obviously was is despicable.
As you say, I really hope that the Jamie Swinney, on behalf of the club, and the FSS etc. all write to both Alloa Athletic FC and to Brian personally apologising for the abuse that he had to endure.
Oh aye, and please, please, please identify this "fan" and ban him for life.