Accident investigators say a 44-year-old motorcycle rider was hurt badly Saturday night when he hit a deer. Forty-four-year-old Matthew McDonald suffered serious injuries in the accident in the Town of Trenton. He is being treated in the intensive care unit in Froedtert Hospital in Wauwatosa for a severe head injury. Investigators say McDonald was found lying in a ditch on the side of the road. He suffered several broken bones and reportedly has more than 20 stitches on his head. He wasn’t wearing a helmet.