Members of the state police Mobile Response Team joined the search on Thursday, as well as several investigators from the state police Bureau of Criminal Investigation.

Police Chief Bill Moore said state police personnel searched some of the more difficult terrain. It’s “what we call a Type 3 search,” he said, “which is something where you could find a pair of glasses or some small item: It’s a very meticulous search.

“We’ve got a lot of assistance from the forest rangers again today,” the chief added. “I think we have four or five rangers assigned to us today. They’ve been assisting different crews with different search areas.”

Moore says three BCI investigators reviewed videos from surveillance cameras around the community in hopes of establishing more leads.

Moore says village police had already looked at videos but didn’t find anything helpful.

Moore asked the public to check places that haven’t been searched and to report anything unusual to police.

“Your campers, your outbuildings,” he said, “any caretakers: check your vacant properties. Check your vacation rentals. And look around in those backyards that you normally wouldn’t, in places you normally wouldn’t. The possibility exists that he may have stumbled in a hole, broke an ankle - we don’t know.”

A command post has been established at the Lake Placid fire station. Volunteers who want to help with the search are asked to check in there.

Seth A. Kilburn, 34, of Lake Placid, is a white male, about 5 feet, 11 inches tall, weighing 195 pounds with brown hair and brown eyes. He was last seen wearing a blue and white striped polo shirt and tan or khaki colored shorts. He also wears glasses.

Anyone with information regarding his whereabouts is asked to contact police at 518-523-3306, or Tony and Celeste Kilburn at 518-523-9716.