Bobby Smelcer, 52, of East Lane Trailer Park, was last seen at his home at approximately 4:30 p.m., Sunday, Nov. 21, his sister, Karen Harris, said.
"He has not been seen or heard from since," Harris said. "We are very concerned and hope someone will come forward if they have seen Bobby or have any information as to his whereabouts."
"We don't really have any leads but we're investigating as if something happened to him," Detective Sgt. Brian Crews of the Shelbyville Police Department said Tuesday.
"There are no obvious signs of foul play at the trailer other than four to six small, dried blood spots near the front door," Crews said. "Everything is orderly inside the trailer and all his personal property is there including his cell phone, wallet and keys."
A Tennessee Bureau of Investigation crime scene unit was brought to Smelcer's trailer Tuesday.
"Nothing more was found by them other than those small blood spots that did not appear to be suspicious," Crews said today. "Agents will help us with the number of people we plan on trying to interview."
Crews said the investigation was hampered because Smelcer wasn't reported missing for six days after last being seen.
Police were notified Friday that Smelcer hadn't been seen by co-workers since being dropped off at his trailer between 11:30 a.m. and noon Nov. 21. Smelcer does not own a vehicle, Harris and Crews said.
Smelcer is an employee of Shelbyville property owner James Farrar, from whom he had been renting the trailer.
Farrar had employees checking the residence regularly, police said, and a Tuesday, Nov. 23, check found the back door open but no one inside.
Police said Farrar and another employee entered the residence again Friday, found no one there and notified police.
Investigators said Smelcer's personal possessions -- his wallet, house key, money, cell phone and identification -- were on a bedroom dresser next to a pot of water and a kitchen knife. No blood was on the knife, police said.
"There were three or four dried blood spots near the front door but the living room and bedroom were in order and it did not appear that any confrontation had occurred in any of the rooms," a report filed Friday by officer David Curley said.
Smelcer is described as standing 5-feet-9, weighing 205 pounds and of medium build with a fair complexion, light brown hair and bluish gray eyes. He was wearing a gray zip-up hoodie with white button-up shirt underneath, dark blue jeans and black Skechers shoes, according to family members.
Flyers containing Smelcer's description are being distributed throughout the Shelbyville area, Harris said. Anyone with information may call Shelbyville police at 684-5811.