Concluding the two-part story of the man who was the only witness to two deaths. First, he shot dead his wife in what he told police was a tragic accident. He said he was looking for a snake in his garage on a chilly night in Toowoomba when his gun accidently discharged. Six years later he struck and killed a cyclist on a lonely stretch of highway. He was convicted of dangerous driving causing death. Now, a retired coroner, who has watched these cases unfold from the sidelines, is asking why the man has never had to face charges relating to the death of his wife.