A 51 year old bicyclist was killed early this morning after being struck by a motor vehicle in the 2300 block of Harlem Avenue in North Riverside, according to the Chicago Sun Times. Illinois State Police crash reconstruction investigators were on the scene to determine the cause of the collision which left Anthony J. Catalano of Bolingbrook dead. The 28 year old driver of the vehicle reportedly remained at the scene and was tested for alcohol impairment. The collision with Mr. Catalano, who was either riding or walking his bike, occurred at around 3:35 a.m. The Sun Times reports that as of late this morning the driver had not been charged with a traffic violation.