A second witness reportedly saw a man matching Leroy Doerr's description walking on Highway 59 the day he went missing.
According to the Knox County Sheriff's Department, a second person interviewed said they saw a person walking approximately 7 miles east of the Doerr residence on Highway 59 on Saturday morning October 12.
"Again the description roughly matches that of Leroy Doerr. If anyone else saw this individual or knows someone who was walking along Highway 59 in the area of where Highway 59 and the County Oiled Road going south of Bloomfield to Highway 59 on October 12, please contact the Sheriff’s Office," officials said.
The Sheriff’s Office is also asking anyone in that area who has buildings or sheds to please look in them for signs that someone may have stayed in.
Another witness told law enforcement they saw a man matching the description of Doerr walking on the south shoulder of Highway 59 around 10:30 a.m. Saturday.
The witness said the individual was not dressed for cold weather and was about 8 1/2 miles east of Doerr's residence walking east.
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, of Creighton, 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.
Last 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.