I concur with what Spamcan says.
Tom was a great controller and a tenacious defender of the Ts&Cs through the union. A very sharp mind which was far superior in knowledge to the majority of people he worked alongside.
Not one to suffer fools gladly, Toms' only failing was that he sometimes 'let off steam' before he thought his actions through.
That said, his treatment 18 months ago was shoddy and was done by management in a bid to flex muscle and shake things up - certainly the heavy handed-ness was not managements finest hour, but unfortunately it followed a few very poor management decisions around the same time from the watch in question.
Toms' professionalism shone through the episode though and the work he did in his new role and the way he got on with his job made the difference between his integrity and the integrity of management even more visible.
RIP