Investigators found no data from rideshare apps showing she traveled to the airport, and confirmed that her phone was last active in the early morning hours of Jan. 3 in the area of their Cohasset home.

There can be no autopsy or official cause of death without a body, prosecutor Anne Yas said in her closing statement, in which she described Ana's killing as premeditated.

"The defendant did not want anyone to find Ana's body and to know how she died," Yas said. "So the defendant bought cutting tools at Lowe's and Home Depot and he cut up Ana's... See more

Prosecutors recounted the story Brian told to investigators, which is that Ana left the house around 6 or 7 that morning to catch a flight back to D.C. for a work emergency — wearing Hunter boots, a black jacket and a Hermes watch.

Brian shopped at a number of stores — including Walgreens, CVS, Stop & Shop and Lowe's — in neighboring towns in the days after Ana's death, according to surveillance footage.

Prosecutors said the video shows him — in many instances wearing a face mask over his mouth and nose and paying with cash — buying Band-Aids and antibiotics, hydrogen... See more

Tipton said Brian's Google searches in the hours that followed were "conducted by a man that is in disbelief and confusion." In closing arguments, he said the fact that the searches happened after Ana's death showed that Brian didn't kill her, let alone plan to.

"Ask yourself: Why is the man searching now if he had intended to kill his wife?" he... See more