The murder of his son seven years ago has turned Robert McGuigan into an activist against compulsive gambling. As he puts it, “If I can save just one family from having to go through what I?ve been through, my work will be worth it. “Jason McGuigan was 28 when he was murdered by Meng-Ju “Mark” Wu over a gambling debt. Two innocent men, Dustin J. Wilson, 17, and Daniel R. Swanson, 25, were also killed in the Verona home they shared in the early morning of June 26, 2003.