Unsolved is a true crime podcast series from 9&10 News.Each month, David Lyden will dive into an unsolved crime in northern Michigan.For this month's installment of our Unsolved series, we're taking a look at a case deputies are confident they've solved, but is stuck in the court system, with a key witness not cooperating.The trial against the man accused of shooting and killing William 'Billy' Buchanan in Free Soil back in April of 2019, was set to move forward, until a stunning turn.