The Bay season 2: Stephen's wife and son hug (Image: ITV) READ MORE Fans believed Marshbrook and his law partner Bill Bradwell (James Cosmo) had connections with a company called Breakwater Developments. Med (Taheen Modak) had attempted to investigate the link but he was run over by an unknown driver and it is believed the same perpetrator could have been responsible for Stephen's death. Sadly this was not the case, as the perpetrator was actually scrapyard boss, Frank Mercer (Owen McDonnell). He had connections with both the Marshbrooks and the Bradwells, which went back years. Fans discovered how Frank had actually been having a secret affair with Stephen's wife Rose (Sharon Small).