Marion County Sheriff’s Major Crimes detectives are investigating the discovery of possible human remains found at a residence located at 18760 SW 47th St. in Lake Tropicana.

The couple who lived at the residence had been reported missing by their family, and detectives are investigating their disappearance.

Layton Underwood, Donna Underwood and Allyn Shane Gilbert

On Sunday, Jan. 6, sheriff’s deputies received a phone call from a family member requesting a well-being check on 75-year old Layton Underwood and his wife, 69-year old Donna. The caller could not make contact with the couple and requested assistance. But when deputies arrived at the Underwood residence, the couple was not there.

During the investigation, deputies found possible human remains on the property and they immediately requested additional crime scene assistance. Major Crimes detectives, forensic technicians, the Medical Examiner and personnel from the University of Florida C.A. Pound Lab responded and are actively conducting an in-depth investigation on the property.

Investigators are in the process of recovering the remains and will then begin the identification process.

Detectives are also looking for the Underwood’s vehicle, which is missing from the residence. It is a white 2014 Volkswagen Passat S bearing Florida tag GXRD85. It is believed that 53-year-old Allyn Shane Gilbert, a relative of the Underwood’s, may be driving this vehicle, and deputies are listing him as a missing endangered subject due to concerning statements he’s recently made. Detectives would like to make contact with Gilbert to speak to him about this incident. The Underwoods also have been listed as missing endangered by the sheriff’ office.

Anyone with information about this case or Gilbert’s whereabouts are encouraged to contact Det. Aaron Levy at (352) 368-3546 or Marion County Crime Stoppers at (352) 368-STOP (7867).