BOSTON — Norton Cartright, 21, has been found guilty of first degree murder in the brutal slaying of his mother in 2006

It was a quick trial. We reported on the opening remarks just about a week ago, and even the jury didn’t take long to come back with a verdict.

Early on in police questioning a few years ago, the prosecution said Cartright admitted that he did indeed strike 46-year-old Yolande Danestoir in the head with a hammer on Aug. 26, 2006, after a heated argument. Danestoir, the prosecutor said, had banned Cartright from her Reynolds Street home in the course of what he called a “volatile” relationship, then found him inside when she returned home from work that morning.

Danestoir’s body was found 10 days later in a kitchen closet wrapped in a sleeping bag.

UPDATE 4:36 p.m. He has been sentenced to life in prison without the possibility of parole.