Some white-water kayaks have drain plugs on the top that are used to rid the kayak of any water by flipping the boat over back on dry land. Ms. Graswald’s lawyer, Richard A. Portale, said that Mr. Viafore’s plug was in the couple’s apartment and that it had been pulled out of the kayak some time ago.
In theory, a missing plug would not cause the kayak to flood since the hole is small. In very choppy conditions, however, waves will splash directly into the cockpit, causing the kayak to ride low in the water and become unstable.
What happened that day on the river was an accident, Mr. Portale said, adding that Ms. Graswald’s comments to the police were coerced.
“Vincent went out to the island in those waters, at that time of day, with no life vest and no plug and a few beers,” he said. “Vincent capsized and drowned, and it’s tragic.”