New York Man Floating on Mattress Drowns in Hudson Valley Pond Enter your number to get our free mobile app On Friday around 7:40 p.m., deputies from the Columbia County Sheriff's Office were dispatched to 90 Overshot Mills Road in the Town of Claverack, along with fire and rescue personnel for a report of a possible drowning. The original report indicated that a man was observed in a pond, and went underwater, and had not resurfaced. Responding police, fire and rescue units were able to speak to several witnesses at the scene who reported that the victim, 28-year-old Claudio A. Teopante of Queens, was using an inflatable mattress as a make-shift float on a small pond on the property, police say.