Police are looking for a missing Niagara Falls man. William Dupon was last seen in the area of Lake and Scott in St. Catharines around 4:45pm but could be attempting to hitchhike. Dupon is described as a white male, 70 years old with grey and black short hair with a grey and black beard. He is 5'9" tall and 175 lbs. Dupon was wearing a black cowboy hat, jean jacket, blue jeans and black leather boots. He walks with a slow gait.