Brian Walshe’s murder trial began last week, and the Commonwealth of Massachusetts is breezing through their witnesses.

Walshe faces a first degree murder charge for allegedly killing his wife Ana in January of 2023. The convicted scammer pleaded guilty to lying to police and mishandling Ana’s body but maintains that he had nothing to do with her death.

The defense argued in their opening statement that Ana died from “sudden unexplained death,” and Walshe, fearful that no one would believe he was innocent, disposed of her body so that he could retain custody of their three kids.

Judge Diane Freniere said Friday that prosecutors are moving so swiftly through their case her previous estimate of four and half weeks of evidence will likely shrink down to just three — meaning that the trial is already about a third of the way through.

So far, the jury in Norfolk County Superior Court has only heard from the prosecution, who have the burden of proving Walshe murdered Ana beyond a reasonable doubt.

In the five days of the testimony, prosecutors have called a series of law enforcement officers from Cohasset and Swampscott Police departments, as well as the Massachusetts State Police, to speak to Walshe’s behavior before and after Ana’s death, as well as the digital and physical evidence they uncovered during the investigation into her supposed 2023 disappearance.

The jury also saw photos of seemingly bloody carpet swatches, clothing, and a hacksaw found in a dumpster Walshe’s phone was tracked to in the days after Ana’s death.

MSP troopers read out dozens of searches on Walshe’s computer and phone regarding how to clean up blood and dispose of a dead body, including: “how to saw a body,” “hacksaw the best tool for dismembering a body,” and “ways to dispose of body parts after murder.”

Ana’s ex-lover William Fastow, a D.C. real estate agent who sold Ana a townhome in the capitol, also took the stand to detail their relationship and Ana’s state of mind before her death.

Fastow testified that Brian Walshe’s legal issues — he was convicted on federal fraud charges and awaiting sentencing before Ana’s death — caused tension in the Walshe marriage. Ana had just accepted a job and bought a home in D.C., but Walshe and the kids had to stay in a Cohasset rental while he waited to hear if he would get prison time.

During cross examinations, Brian’s defense team has tried to point out evidence, or a lack there of, that Walshe knew about Ana’s affair. They also have tried to shine a positive light on the Walshe’s marriage, including the fact that Ana never spoke negatively about Brian to her lover and that the couple had relatively normal contact in the time leading up to her death.

The trial will continue Monday at 9 a.m.