A death investigation in Roane County led to a high speed chase Monday morning.
Authorities set up a checkpoint to talk with motorists near where they found the body of Johnny Douglas Sunday.
The Roane County Sheriff's Office says someone sped through the checkpoint around 10 a.m. without stopping. That led to a high speed chase into Morgan County.
The Roane County and Morgan County Sheriff's Office as well as the Department of Corrections and Knox County Sheriff's Office are assisting with the search for the suspect.