UPDATE: Man charged in murder of Dunnellon couple

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LAKE TROPICANA, Fla. (WCJB) -- UPDATE: 03/28/19:
Marion County deputies have announced today that they arrested Allyn Gilbert, 53, for the murder of Layton and Donna Underwood.

Deputies say, they began their investigation after 75-year old Layton Underwood and his wife, 69-year old Donna Underwood, were reported missing by family members.

During the investigation, deputies found human remains in a shallow grave on the property. Detectives also found that Layton Underwood’s former step-son, Allyn Gilbert had been living on the property with them, and had stolen the couple’s car around the time they went missing.

A few days later, Gilbert was found in Omaha, Nebraska with the Underwood’s car. He was arrested on a Marion County warrant for Possession of a Firearm by a Convicted Felon.

Gilbert was then taken back to Marion County and he confessed to killing the couple during a post-Miranda interview. Gilbert said that he killed the couple during an argument in his trailer. He also said that he disposed of Donna’s body in a dumpster and burned Layton’s body and buried his remains in a grave in the backyard.

Detectives were only able to recover Layton Underwood’s remains. Gilbert has been charged with two counts of Second Degree Murder, and is currently being held in the Marion County Jail on no bond.
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UPDATE: 01/13/19:
According to the Marion County deputies, missing endangered, man Allyn Gilbert was found by officials in Omaha, Nebraska on Friday, January 11.

Gilbert was also in possession of the Underwood’s car, which was recovered. MCSO detectives went to Omaha over the weekend to interview Gilbert about this incident.

Currently, Gilbert is being held in Douglas County, Nebraska, for a Marion County warrant for Possession of a Firearm by a Convicted Felon.

Deputies say that at this point in time, that is the only charge he has. Investigators can confirm to TV20 that they in fact recovered human remains from the incident location on SW 47 Street in Dunnellon.

The scene was cleared on Friday, and investigators have begun the identification process.

Mr. and Mrs. Underwood are still listed as Missing Endangered by the MCSO.
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Detectives in Marion County are looking for a man who may be driving the car of a missing elderly couple.

This comes after possible human remains were found on the couple's property in Lake Tropicana near Dunnellon.

As the mystery of possible human remains found on the property of a missing elderly couple, unfolds, neighbors remain curious for answers.

"I've never heard of anything like that before," Steven Scholl, a nearby resident, said.

The couple who lived at the house on Southwest 47th Street was reported missing by their family on Sunday.

Deputies received a phone call requesting a well-being check on 75-year old Layton Underwood and his wife, 69-year old Donna Underwood.

"The family members hadn't heard from them since Christmas time," Lauren Lettelier, Marion County Sheriff's Office Public Information Officer, said.

During the investigation, deputies found possible human remains on the property on Tuesday.

Detectives are now trying to identify the remains and also are looking for the Underwood's missing car.

It's a 2014 White Volkswagen Passat bearing Florida tag: G-X-R-D-85.
Detectives think that 53-year-old Allyn Gilbert, a relative of the Underwood's, may be driving this car.

He has been listed as a missing endangered subject due to concerning statements he's recently made.

Deputies can't confirm if the remains found belong to the missing couple.
The remains will be reviewed by the Medical Examiner for identification.