A Massachusetts “monster” convicted of killing his wife in their home will spend the rest of his life in prison, a court heard this this week.

Andrew MacCormack, 31, was sentenced Monday to life without parole for the September 2017 slaying of Vanessa Masucci, the Boston Globe reports.

“The pain of losing Vanessa is so deep,” the woman’s mother, Karen Masucci, said during her victim impact statement.

The couple’s 3-year-old daughter also saw her mother — a well-liked teacher elementary school teacher — “ripped away from her by the monster” who had been supposed to protect her, Masucci said.

Vanessa’s sister, Angela Masucci, said her niece on occasion asks her to drive her to heaven so she can visit her mother, who “lives in the clouds,” she said.

“She will never laugh as hard as we did at Vanessa’s jokes and sense of humor,” Angela Masucci said of the 3-year-old girl. “[Vanessa] was my only sister and my best friend.”

But McCormack insisted that he didn’t kill his wife, claiming that he would “not rest until this injustice is corrected,” according to the newspaper.

“There is somebody out there getting away with murder,” McCormack said.

Prosecutors allege Masucci had become fed up with McCormack’s “erratic and evasive behavior” in the months prior to her death — and was planning to leave the marriage.

McCormack was also spending cash on drugs, prosecutors said, and pawned his own wedding band for $120. Masucci’s wedding ring — as well as a replacement band — also disappeared earlier in the year, authorities said.

McCormack left the couple’s Revere home with their daughter after the September 2017 slaying to buy cocaine. Police later found Masucci’s body in the residence, which had been scrubbed with “copious” amounts of bleach, prosecutors said.

Suffolk County District Attorney Rachael Rollins has asked that news outlets identify Vanessa using her maiden name of Masucci.

The woman’s relatives — who had earlier confronted McCormack in court, calling him a “scumbag” during his arraignment — said last month’s conviction and Monday’s sentencing had given them much-needed closure.

“A young, bright light was taken from this Earth,” Vincent Masucci said. “Now that her murderer is going away for life, I hope she can rest in peace.”