A motorcycle crash in Marquette County has claimed the life of a Fond du Lac man. The Marquette County Sheriff’s Office says 59 year old Robin Schwartz of Fond du Lac was killed Sunday afternoon in the crash in the town of Montello. The Marquette County Sheriff says a northbound vehicle on Highway 22 had slowed for a vehicle turning onto highway XX amd was struck from behind by a motorcycle. The motorcycle operator was not wearing a helmet.