Steve Gallant, 43, was jailed for 17 years in 2005 for the murder of Barrie Jackson Gallant was at rehabilitation event when fellow participant Usman Khan attacked Jihadist Khan killed graduates Jack Merritt and Saskia Jones during terror attack Gallant grabbed a narwhal tusk and helped bring down Khan during the incident He was later pardoned by the Queen for his actions on London Bridge in 2019 Now, according to the Sunday Mirror, Gallant could be released 'within weeks'