This episode is available to subscribers of the Toronto Star on February 24 at thestar.com/billionairemurders. Or it will be free in your feeds March 3.  In this bonus episode of “The Billionaire Murders,” we take listeners behind the scenes of reporter Kevin Donovan’s investigation into the murders of Honey and Barry Sherman. Donovan discusses some of the wild tips and theories he and police have hunted down, and outlines one tip that sounds promising and right out of a spy novel. You can receive a 10 percent discount on a subscription with promo code PODCAST at thestar.com/subscribe.  “The Billionaire Murders: The hunt for the killers of Honey and Barry Sherman” is a “Suspicion” podcast probing the strange case of the famous Toronto couple who were found strangled in their north Toronto home in 2017. For five years, Donovan has covered the case for the Star, fought court battles to access documents on the police investigation and the Sherman estate, and wrote a book about it.