Silent Witness: River's Edge

SYNOPSIS

The Lyell team investigates the murder of a family shot while picnicking by a river, and discover the female victim was in the middle of a bitter divorce. Local detective Malcolm Guillam is brought in to help and when the present-day murder reminds him of an unsolved case that haunts him, he sees an opportunity to redeem himself. However, DCI Sally Butcher is convinced that the woman's estranged husband is responsible for the murder and has no time for Guillam's trip down memory lane. Guest starring Derek Griffiths.