NEW CANAAN, CT – One year has passed since the suicide of Fotis Dulos who left behind many unanswered questions surrounding the disappearance of his estranged wife Jennifer Farber, as well as five children, now living under the care of their maternal grandmother.

On January 20, Connecticut State Police brought in an excavator to dig behind a Farmington home once owned by Dulos’ construction company, the local Connecticut NBC News affiliate reported.

Police also “brought in an expert from New Hampshire to search the area with ground penetrating radar,” NBC News reported. Bob Perry, who is known nationally as "The Bone Finder," told NBC Connecticut “he was at the Mountain Spring Road property on Tuesday,” but “would not say if he and police found anything.”

Dulos was accused of murdering his wife who went missing in May 2019 and has never been found, NBC News reported, adding that “the last sighting of her was when she dropped her children off at school in New Canaan that morning,” and “police who initially searched for Jennifer Dulos found blood at her New Canaan home.”

A yellow tarp is set up and watched over by a police officer outside of the garage to Fotus Dulos’ home, Tuesday, Jan. 28, 2020, in Farmington, Conn. (AP Photo/Jessica Hill)

Perry, 73, a “cemetery geophysics expert renowned for being able to locate unmarked graves or find where remains may be buried,” has been featured along with his company Topographix on the History Channel and “uses his radar technology to find anomalies in the ground,” the Daily Mail reported.

Fotis Dulos and his then-girlfriend Michelle Troconis were first charged with tampering with evidence in connection with Jennifer’s disappearance, NBC News reported, adding that “Dulos was eventually charged with murdering Jennifer Dulos,” and “Troconis and a second person, Fotis Dulos' friend Kent Mawhinney, were charged with conspiracy to commit murder.”

“Dulos, Troconis, and Mawhinney all denied having anything to do with the disappearance of Jennifer Dulos,” NBC News reported.

Perry was brought in by investigators “to pinpoint locations on the five-acre property where the body of the mother-of-five could have potentially been buried,” the Daily Mail reported, noting that “police were specifically interested in a wood line area that Fotis had previously discussed with surveyors when he was trying to sell the property after Jennifer vanished.” 

Dulos “had apparently asked the surveyors if any future owners would be able to dig up that portion of the land to potentially put in a pool,” the Daily Mail added, noting that “the surveyors later reported the comments to authorities.”

“During his search, Perry ended up finding five locations where the soil had been disturbed,” and “it is not clear when the ground was disturbed,” the Daily Mail reported. 

He told Hearst Connecticut Media that “four of the areas were near the wood line and a fifth was found in the basement of the home,” the Daily Mail reported, adding that “Perry said the basement location was likely a long pipe that stretched into the yard.”

FILE – This undated file photo from a missing persons flier provided by the New Canaan Police Department shows Jennifer Dulos, mother of five who went missing in May 2019. (New Canaan Police Department via AP, File)

Photos taken during the search of the property “showed red flags at the locations where Perry identified that the ground had been disturbed,” and “an image of the basement showed a section of discolored concrete that appeared to have been re-cemented at some point,” the Daily Mail reported.

Perry said that “even though the ground had been disturbed, the reading on his machines did not indicate that a body was currently buried there,” the Daily Mail reported, noting that “investigators later searched the areas he identified by digging it up with shovels and excavators,” but police “refused to say if they found any evidence of remains on the property.” 

Perry said that “investigators have also not told him if they located any evidence,” the Daily Mail reported.

Authorities “would not say at the time what prompted the search,” the Daily Mail reported, noting that they did say they were “following up on old leads.”

“The property Perry helped search last week was one of several Fotis Dulos and his company had been developing at the time of Jennifer's disappearance,” the Daily Mail reported, adding that “it has since been foreclosed on and is now for sale by the bank.” 

According to court documents, Dulos and Troconis “had visited the property in the hours after Jennifer was last seen,” and “cell phone records show that Fotis visited the property twice that day,” but “never publicly explained what he was doing at the property that day,” the Daily Mail reported.

Jennifer Dulos has never been officially declared dead by the authorities and her remains have not been found.