Robert Wayne Cox, 57, disappeared from his home near Havana, Arkansas on February 19, 2011. In the months before he vanished his health declined rapidly; he developed severe anxiety, became largely non-verbal, and had marked mobility problems that left him hunched over and often unable to lift his head. Family members had scheduled medical testing to evaluate possible dementia before he went missing.

According to his wife, he walked away from their 35-acre property around 1:00 p.m. and was last seen in a clear-cut area on the land; when she went to bring him back inside he was gone. Other relatives, including his sister, publicly questioned whether he could have physically reached that spot given his condition. At disappearance he wore a navy blue hooded sweatshirt, gray sweatpants and gray sneakers; he is described as a white male, 5 feet 10 inches, about 155 pounds, with graying brown hair and brown eyes.

Searches including a Silver Alert and checks of nearby wells and a lake found no trace. The Yell County Sheriff’s Office, with Arkansas State Police assistance, lists the investigation as open. Does anyone who knew Robert or his movements on February 19, 2011 have information that could help resolve what happened to him?