Updated

QUINCY, Mass. – Blood and a damaged knife were found in the home of missing Massachusetts mother of three and real estate executive Ana Walshe, prosecutors revealed Monday in court. 

Brian Walshe, 47, the missing woman's husband, appeared in Quincy District Court after he was arrested Sunday on charges he misled investigators about his whereabouts after his 39-year-old wife's disappearance.

"They found blood in the basement. Blood was found in the basement area, as well as a knife, which also contains some blood," prosecutor Lynn Beland told Judge Mark Coven. "Part of the knife was damaged."

Brian Walshe, a convicted art swindler who is on house arrest, told police he last saw his wife early New Year's Day before she vanished.

ANA WALSHE'S ART CONMAN HUSBAND APPEARS IN COURT ON NEW CHARGES OVER WIFE'S DISAPPEARANCE

A side by side of Brian Walshe and Ana Walshe, who vanished New Year's Day

Brian Walshe seen during arraignment in court and Ana Walshe headshot. (POOL / Cohasset Police Department)

Ana Walshe's cellphone pinged near the family's Cohasset home on Jan. 1st and 2nd after her husband alleges she had already left their home, the prosecutor said.

In a glaring omission, he failed to tell investigators he took a trip to Home Depot on Jan. 2 at about 4 p.m. to purchase $450 in cleaning supplies, including "mops, bucket tops…drop cloths, as well as various kinds of tape," Beland added.

MISSING COHASSET WOMAN: TIMELINE OF ANA WALSHE'S MOVEMENTS BEFORE DISAPPEARANCE

His defense lawyer Tracy Miner argued that her client was forthcoming about his whereabouts – but simply forgot to mention the visit to the home improvement retailer. 

She added that he consented to let police search his home and phone. "He has been incredibly cooperative," she told the court, as Brian Walshe stood behind a panel of plexiglass, wearing a gray sweatshirt.

Ana and Brian Walshe split image

Ana Walsh, left, has been missing since New Year's Day. Her husband, Brian Walshe, right, was spotted leaving their home in Cohasset, Mass., Sunday as police returned to search the property.  (Fox News Digital)

The shocking disclosures were made at Brian Walshe's arraignment Monday, where Coven ordered him held on $500,000 cash bail. A not guilty plea was entered on his behalf.

Ana Walshe, a regional general manager for Tishman Speyer, commuted each week for her job at the real estate development firm. 

MISSING MOM ANA WALSHE'S FORMER MASSACHUSETTS HOME BURNS

She had an airline ticket that departed Jan. 3 for D.C. but she never boarded the flight and failed to show up to work the next day, according to police.

Man is led into court by two police officers

Brian Walshe arrives at Quincy District Court in Massachusetts on Monday, January 9, 2023, on charges he misled investigators about his wife's disappearance.   (David McGlynn for Fox News Digital)

On Jan. 4, Ana Walshe's company – not her husband – reported that she hadn't showed up to work, Beland said.

"We are actively assisting the local authorities in their ongoing search for our beloved colleague, Ana, and are praying for her safe return," a spokesperson for the company told Fox News Digital.

POLICE SEARCHING ANA WALSHE'S POOL, WOODS NEAR HOME; DETECTIVES HEAD TO DC

Investigators interviewed Brian Walshe repeatedly to establish a timeline. The conman, who shares three young boys with his missing wife, cannot leave his home without permission due to the conditions of his house arrest.

READ THE AFFIDAVIT BELOW. APP USERS: CLICK HERE.

On New Year's Eve, Walshe said he and his wife had dinner with a friend, Gem, at their home. Gem left at around 1:30 a.m. 

Later that morning, he said his wife told him she had a work emergency and had to fly to Washington, D.C. 

A little after 6 a.m., she "kissed him goodbyes" and took a car service to the airport, the affidavit says. That was the last time he saw her, he told investigators.

Later New Year's Day, Brian Walshe told police he picked up his mom and took her to run errands at Whole Foods and CVS while a babysitter watched the three boys ages 2, 4 and 6. He said he had lost his phone so did not take it with him, according to the affidavit. 

Brian Walshe smiles outside of courthouse

Brian Walshe seen at Quincy District Court in connection to his wife, Ana Walshe's. disappearance.  (WBZ)

But video surveillance showed that Brian Walshe never visited the stores, the document says.

In another alleged inconsistency, he said he took his son to get a chocolate shake at Press in Norwell on Jan. 2.

But he neglected to mention the trip to Home Depot, in Rockland, where he was captured on video surveillance "wearing a black surgical mask, blue surgical gloves and making a cash purchase," the court papers say.

The Home Depot trip was made in violation of his parole, according to police.

Home Depot in Rockland, MA

Home Depot where Brian Walshe allegedly purchased cleaning supplies one day after his wife, Ana Walshe vanished. (Google Earth)

Brian Walshe pleaded guilty in April 2021 to one count each of wire fraud, interstate transportation for a scheme to defraud, possession of converted goods and unlawful monetary transaction for selling a pair of fake Andy Warhol paintings on eBay and other crimes.

His presentencing probation conditions included permission to drop off and pick up his children from school and other brief outings.  On Jan. 1, he was permitted to help his mother after a recent cataract surgery from 3 p.m. to 9 p.m.

CLICK HERE TO GET THE FOX NEWS APP 

He told police that he had used this time for the trips to Whole Foods and CVS which "investigators later showed did not occur," the affidavit says.

His cellphone data allegedly revealed he had also traveled to several areas – including Brockton and Abington – in violation of his parole, the document states.

"The fact that he was asked specific questions, and he gave untruthful answers that led investigators out of the area caused a clear delay in the search for the missing person," the affidavit says.

Haley Chi-Sing contributed to this report.