Sounds like he got what he deserved coming to him, I bet he thought he was well hard smashing up a table and thought because the law is the way it is, that the security guard couldn't touch him and he could look macho by telling someone doing his job to f off
From the sounds of the story, all you saw was the initial incident and not him getting his retribution later on, so you have nothing to worry about. If it was me I would make a statement to the police detailing exactly what the vandal did to the table and how he treated the security guard, I'd go and tell the security guard as well that I was testifying about the incident to the police so the company could prosecute him for vandalising their property. Off the record I'd also tell the security guard that the law was too soft in this country and I approved of his actions getting the little scrote battered.