On Wednesday, the murder trial of Boston art fraudster Brian Walshe continued with compelling testimonies from Massachusetts police officers, airline records personnel, and a Customs agent. The case revolves around the disappearance and presumed death of Walshe’s wife, Ana Walshe.

The proceedings began with Massachusetts State Police Trooper Nicholas Guarino taking the stand once again. Guarino has been pivotal in the trial, delivering extensive testimony regarding Walshe’s internet search history. His searches raised eyebrows, featuring sinister inquiries about how to dispose of human remains and methods for cleaning DNA from a knife. Alongside these disturbing searches, Walshe also browsed classified ads for luxury cars such as Porsches, sought information on diamond jewelry sales, and watched a pornographic video involving a cheating spouse.

In a dramatic twist, evidence surfaced suggesting that Ana Walshe may have been involved in an extramarital affair with William Fastow, a realtor based in Washington, D.C. Walshe had included Fastow’s name in his online searches, further complicating the narrative of Ana’s disappearance.

Brian Walshe arrives at Norfolk Superior Court in Dedham, Massachusetts, on Monday, Dec. 1, 2025. Walshe is facing murder charges for the death of his wife, Ana Walshe. (David McGlynn for Fox News Digital)

Ana was allegedly having an affair with a Washington, D.C., realtor named William Fastow, whose name Walshe also searched for.

Prosecutors have alleged two potential motives in the slaying. The first is anger over the affair. The second is because he allegedly believed he would have a better chance of avoiding prison in an unrelated art fraud case if his wife were out of the picture and he was the only caretaker for their three children.

Walshe’s defense has denied that he had any knowledge of the affair.

Ana Walshe wears a Washington Capitals jersey in a December 2022 post. (Ana Walshe/Instagram)

Next on the stand was a U.S. Customs and Border Protection agent named William Foley, who testified briefly about Ana’s air travel in the weeks before she vanished.

Next up was Cohasset Police K-9 Sgt. Patrick Reardon, who was part of the search effort for Ana on Jan. 5. 2023, with his K-9 partner, Einstein. Reardon and Einstein participated in an area search outside the Walshe family home. They found nothing of note, except for a dog in a fenced area of the backyard. The defense declined to cross-examine him.

Brian and Ana Walshe raise a toast on their wedding day in the lounge of L’Espalier in Boston on Dec. 21, 2015. (Obtained by Fox News Digital)

Thomas Menino, a JetBlue corporate security official and records keeper who works at Boston Logan International Airport, took the stand next. He testified that Ana’s flight from Washington to Boston on Christmas Day 2022 had been refunded. She took another flight on the same route from Dec. 30, 2022. She was listed as “no show” on her return ticket, issued for a flight back to D.C. on Jan. 3, 2023.

She missed four more flights later in January that had all been booked earlier, because she commuted to the nation’s capital for work. Ana was last seen on Jan. 1, 2023.

Larry Tipton and Kelli Porges leave Norfolk Superior Court in Dedham, Massachusetts, Monday, Dec. 1, 2025. Tipton and Porges are the defense attorneys representing Brian Walshe. (David McGlynn for Fox News Digital)

The defense also declined to cross-examine Menino.

Cohasset Police School Resource Officer Gregory Lowrance testified next that Walshe told him after Ana’s disappearance that when he last saw her on Jan. 1, she had departed for a flight from Boston to Washington.

Lowrance took a missing person report from Walshe regarding Ana on Jan. 4.