Janine Fountain is running the London marathon this year for the Army Widows Association. She's become involved with the organisation since the death of her husband Steven.
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The 20-year-old has signed a three year deal with the Terriers.
They believe the two could have information which would help them investigate the death of Rolandas Poskas.
Images have also been released of three more men RSPCA inspectors and the police want to question about the fighting in North Yorkshire.