Forget what you think you know about the Winter Hill Gang; this is the ruthless truth of the Boston underworld and its most ominous figure - his tragic origins, unsolved murders, and his daughter who broke the silence around him. In 2020, author Springs Toledo set out to find a ghost in the Boston underworld whose name can end a conversation - what he found is startling. Don't Talk About Joe Mac is a true crime biography that reads like noir fiction. It is a journey through a shadow society as bizarre as it was impenetrable; an exposé that will upend the official narrative animating United States v. James J. Bulger (2013) as it corrects the record and takes the top off a succession of unsolved murders. Joe McDonald (1917-1997), a World War II veteran and father of five, was the most revered career criminal in the region and its most prolific killer. He founded the Winter Hill Gang in the 1950s, became the bogeyman of the infamous Gangland War of the 1960s, and was among the FBI's Ten Most Wanted Fugitives in the 1970s, and yet his name was barely mentioned and his exploits only whispers. His daughter, whose own unforgettable story is laced within his, brings us uncomfortably close to a personality marred by trauma. This is Joe Mac's story, a story you were never supposed to know.