UPDATE: Mark Koehn has been located, uninjured, and reunited with his family. The Sheriff's Office thanks all involved in locating Koehn, especially the person who spotted him walking down the roadway and called 911.
The Brown County Sheriff’s Office is attempting to locate Mark Patrick Koehn, 22, 5’9”, 160 pounds, brown hair and brown eyes, who walked away from his home in the 1300 block of Graceland Terrance in Howard.
Koehn has Apergers Syndrome and does not respond as an adult. He is very sensitive to light and noise. Koehn was last seen around Noon Friday and was last seen wearing a green Milwaukee Bucks hat, plaid shorts and a gray T-shirt. Koehn has black glasses and is balding.
If you any information on Koehn's whereabouts, contact the Brown County Public Safety Communications Center at 920-391-7450.