Police are searching for the rest of a gang that tied up businessman Richard Barnfather and his fiancee at their home in Shropshire.
One of the gang, Nathan McDonald, was jailed yesterday for almost ten years for his part in the raid.
Police are offering £14,000 for information leading to further arrests.
Nathan Rudy McDonald has been sentenced to nine years and eight months for his part in a robbery earlier this year.
Police have arrested a man in connection with an armed robbery in Shropshire.
Detectives investigating a violent armed robbery in Staffordshire are appealing for information.