The Absolute Betrayal

When Peter and Jane McKintosh were burgled in their home, they considered it an ordinary burglary, but then Brendan McKintosh and his family were involved in a single car accident coming back from a day out, Brendan, his wife, Catriona and their daughter died following the accident. Brendan's father Peter McKintosh and the family took it as an unfortunate car accident. Then Peter's son Dennis and daughter Gloria were being harassed in Nairobi, where they had gone for business, by an Irish person. These events made Peter McKintosh sense maybe there was more to it than normal coincidences and he approached the Gardai, the Irish Police with his suspicions. Gloria and Dennis McKintosh were then car-hijacked in broad daylight, in Nairobi and nearly got killed by armed gangsters. Peter McKintosh insisted on the Police to investigate the matter further, and the Irish Police Inspector in charge, Detective Inspector Finbar with a member of London's famous Scotland Yard traveled to Nairobi and were then assisted by the Kenya Police. They managed to apprehend the Kenyan criminal responsible. And realized it was a murder attempt. Back in Ireland, Peter and the Police uncovered an underground vicious criminal Darragh was hired to murder and assassinate Peter's family. But then who was the Mastermind behind these murders? What was the motive of the killings?