Solicitor Alan Collins, who represented 13 of Hall's victims, said: "My clients know what a type of man Hall is and how he operated.
"This additional sentence is further vindication of their decisions to come forward and speak out about the appalling abuse they suffered at his hands."
More top news
A "very dangerous" tattooed attacker who kidnapped a man before subjecting him to numerous assaults has been jailed for life.
The Duke and Duchess of Cambridge went salmon fishing in Canadian waters on the latest leg of their royal visit to the country.
What happens when a former president holds up a current president hoping to fly home for dinner with his family?