Leavenworth Police Chief Pat Kitchens says the department identified the body as 38-year-old Jason Davies by finger prints.
Davies' death investigation has now been turned over to the St. Joseph Police Department. Police are handling the death as a homicide investigation.
The body was found last Thursday by Nebraska Game and Park employees that were tracking fish in the river.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.