PLAINVILLE, Mass. (AP) — A Massachusetts man charged with stabbing his mother to death has been held without bail.

Twenty-one-year-old Sean Murphy pleaded not guilty to murder Friday at his arraignment in Wrentham District Court.

Norfolk District Attorney Michael Morrissey and Plainville police Chief James Alfred say police responding to a Plainville home at about 10:15 p.m. Thursday found 51-year-Caryln Murphy dead from “apparent stab wounds.” Her husband had called police.

Authorities say the suspect used a kitchen knife.

Sean Murphy was not at the scene but was later tracked down at Patriot Place, the shopping center next to the New England Patriots’ Gillette Stadium.


Authorities have not disclosed a motive. His attorney did not argue for bail.