Emily Longley's grandfather has given his reaction to Anita and Leigh Turner's jail sentences.
The pair were each given 27 months for covering up, after their son, Elliott, murdered Emily at their home in Bournemouth.
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The artist was found bludgeoned to death in a £1.6 million mansion in Bosham, West Sussex in 2013.
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Medway made up of the five towns surrounding the River Medway - hopes to attract widespread support.