Charles Dwayne Bell was last seen at the intersection at Dripping Springs Road and Red Rock Road in Boone County, driving a 2009 red Ducati motorcycle.
On September 15th the 34-year old was last seen wearing jeans, a red and black jacket, a helmet and black backpack.
Last Sunday, nearly 100 people searched Boone County rural highways for any sign of the father of three.
But found nothing.
Tuesday afternoon authorities used a helicopter for an aerial view of the same area, and again found nothing.
The Boone County Sheriff's Department now agrees with Charlie's family, that his disappearance is suspicious.
"People just don't fall off the face of the earth or just vanish. The possibility of foul play is certainly something we have to consider, Boone County Sheriff's Department Detective Tom O'Sullivan said.
"There's only 3 scenarios. There was an accident, he left on his own, or somebody else caused him to leave, that's the only three options there is. The fact that he met up with some bad people is an option and it's looking more and more suspicious to me that's what happened, Charlie's Father Charles Bell.
Bell said he and his family have done as much as they possibly can to try and find Charlie.
"We've put out fliers all over the county, Facebook, and through social media. We are offering a $10,000 reward at this point for information leading to his whereabouts, Bell said.
Now they are left to hope and pray that information will come to lead them to Charlie.
If you know any information about Charlie Bell, call the Boone County Sheriff's Office at (573) 875-1111.