crime scene tape Crime scene tape.
Credit: Metro file photo

A Dorchester man was sentenced to spend the rest of his life behind bars after pleading guilty to fatally stabbing his 72-year-old neighbor to death.

Tu Nguyen, 31, pleaded guilty to second-degree murder on Tuesday, according to the Suffolk district attorney's office. A judge sentenced Nguyen to life in prison.

Had the case gone to trial, the district attorney's office said that prosecutors would have introduced evidence to show that in February 2012 Nguyen broke into Mary Miller's first-floor Dorchester apartment through a window. Nguyen lived on the second floor of the building. Once inside, he fatally stabbed her.


Police were called to the scene at about 1:45 a.m. During their investigation, police found a private security camera that showed Nguyen entering the apartment, according to authorities.

Nguyen was initially sent to Bridgewater State Hospital for a mental health examination, but he was later found to be competent for his case.

Follow Michael Naughton on Twitter @metrobosmike.

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