More than 50 volunteers spent Sunday searching a cornfield east of Creighton, looking for missing 53-year-old Leroy Doerr.
Doerr was last heard from by family just before 6 p.m. Friday. A missing and endangered person advisory was issued for him Saturday night after volunteers, family, firefighters and emergency personnel scoured the area for him.
Knox County Sheriff Don Henery said foul play is not suspected in Doerr's disappearance.
Doerr is 6-5, 165 pounds and has green eyes and blonde hair. He also has memory loss and suffers from medical conditions and has been without medication since he disappeared.
Henery said Doerr's phone and personal items remain at his house, as do all vehicles. Henery said footprints were discovered in the cornfield east of the house, which is why volunteers spent the day walking that field.
The field has 1,040 rows of corn, and volunteers are walking three rows apart. Henery said he hopes to have the entire quarter walked by sunset.
On Saturday, the Nebraska State Patrol helicopter flew over a four-mile radius of the house as it searched the area. Drones were also used from multiple agencies; however, Henery said it was difficult to see to the ground beneath the cornstalks.
Agencies involved with the search have included the Knox County Sheriff's Department, Creighton Police Department, Nebraska State Patrol, Creighton Fire Department, Plainview Fire Department, Wausa Fire Department, Pierce Fire Department and Nebraska Game & Parks. Family members, friends and neighbors have also been involved with the search.