Sunday will mark six months since the disappearance of Steven Curtis Jones of Bowie County, Texas.
Jones reportedly left for a motorcycle ride back in March, but never returned.
"I have a worst fear that somebody did harm to him and killed him and took him off somewhere," said Kathy Sturdivant, the sister of Jones.
Lt. Jerl Palmore with the Bowie County Sheriff's office says the investigation remains an active one, but leads are needed.
A candlelight vigil is planned for this Saturday at the Bi-Stace Justice Center to remember Jones.
Relatives are also offering a reward in the case.
Anyone with information can call the Bowie County Sheriff's Office at 903-798-3149.