A helicopter landed near the round barn in Barnet on Tuesday during the Passumpsic River search for the body of Richard C. Gammell Sr. The pilot of the U.S. Customs & Border Protection helicopter and its passenger, Vermont State Police Det. Trooper Jason Danielsen had seen something that gave them hope. “At one point they thought they saw clothing,” said VSP Lt. Jason Letourneau in an email. “They landed and walked to the item and it was not clothing or Gammell.” The helicopter spent about two hours searching the river, beginning in the area where it is believed Gammell went into the water near his vehicle parked on River Road. The flight path continued south to the point where the Passumpsic reaches the Connecticut River. Authorities believe Gammell stepped off the ice on the riverbank on Feb. 27. The search began that Sunday as soon as his disappearance was reported. The state police scuba team arrived and spent two days searching the immediate area using a remote-operated underwater vehicle with a camera.