In the early years, Kevin Adkisson had what he describes as an “idyllic” childhood. He and his four younger brothers – David, Kerry, Mike and Chris – grew up on a farm in rural Texas. They spent their days drinking chocolate milk and eating blackberries from the fields, running around with their dogs and riding horses. When they became wrestling stars – known in the ring as the Von Erichs – their excursions got fancier. They would fly out to Hawaii between matches and spend a few days diving and fishing. “We always had fun,” he says. They were as...