Nicky Jacobs embraced his friends and supporters as he was released from Belmarsh prison today.
Jacobs, wearing a brown leather jacket, shook hands with his solicitor before greeting his friends just a day after he was cleared of murdering Pc Keith Blakelock in 1985.
He was subsequently driven away in a silver saloon car.
The 45-year-old's lawyer said his client was "relieved" to be free after his ordeal.
More top news
John Cantlie, who worked for a number of Fleet Street newspapers, is thought to have been taken hostage in November 2012.
The union published a 'no show' league table for last year the worst offenders for cancellations.
Zalkalns was jailed in his native Latvia for eight years in 1988 after he admitted killing his wife with a piece of electrical equipment.