Authorities have identified a man whose body was found near Mondamin, Iowa as 52-year-old Michael E. Gnirk of Hoskins, Nebraska.
The state Division of Criminal Investigation says fingerprints submitted to an FBI database helped confirm the identity.
A hunter found him on Saturday in a rural, wooded area a few miles southwest of Mondamin in Harrison County.
Authorities said Wednesday that they're continuing to investigate the case, and they're trying to retrace Gnirk's last few weeks and days. They're looking for anyone who may have been in contact with him over the last three to six months.
Investigators have not released a cause of death.