S04E04 - Death of a Family Man

The detective investigates the mysterious death of businessman John Shearwood, found floating in the water under the Gateshead Millennium Bridge when he was supposed to be on a golf trip to Ireland. The man's wife Stella and brother Luke are baffled to discover he was working as an informant for HM Revenue and Customs. Chief Revenue investigator Owen Preece reveals John's business manager Mark Donovan has been running an alcohol scam through their haulage firm and the deceased had agreed to offer information in exchange for immunity from prosecution. Was his cover blown? Owen doesn't think so, and Mark has an alibi - unlike John's wife.