Robert John Lothenbach, a Thoroughbred owner and breeder who was a passionate booster of horse racing in his home state of Minnesota and also enjoyed success in the sport on the national level, has died unexpectedly. He was 64. The Minnesota chapter of the Horsemen's Benevolent and Protective Association (MHBPA) announced his passing late on Monday. The cause of Lothenbach's death has yet to be publicly disclosed, and funeral arrangements are pending. Shortly after Canterbury Park first opened in 1985, Lothenbach and three friends each put up $1,000 to claim...