Tompkinsville, Ky. (WBKO) --Wendell Proffitt has not seen his brother Mark Allen Proffitt since last Friday.
"We're really concerned about him. He doesn't usually stay out this long without coming home, or without calling. He refers to me as his big brother and I'm always there to get him out of a scrape, and it's just disturbing that he hasn't called me. That's what I'm used to is him getting in a mess and calling me to get him out, but this time he didn't do that," said brother Wendell Proffitt.
Kentucky State Police are investigating the 45 year old Tompkinsville man's disappearance, and Proffitt says he was last seen in Tompkinsville late Friday night.
"He left the house around 4 o'clock Friday afternoon, and he was last seen at the Harland Heights area of Tompkinsville somewhere around midnight," said Proffitt.
Proffitt says the scariest part of the unknown, is knowing that his brother has never done anything like this before.
"Anything is possible. Maybe he decided on a whim he just wants to disappear, but I don't really believe that. That's just not his personality. I know my brother and it would be a dramatic change if he decided to just up and leave and not want to come home," said Proffitt.
Five days into the search, Proffitt says his family is beginning to lose hope.
"We're extremely concerned about his safety and well being. We fear for the worst," said Proffitt.
Proffitt begs if anyone sees or knows anything about the whereabouts of his six foot tall, approximately 180 lb. brother, with brown eyes, please contact Kentucky State Police at 1-800-222-5555.