CHELSEA, MASS. (WHDH) – A man accused of a crime Knife attack in Chelsea He pleaded not guilty to murder charges on Monday.

Nathaniel Pagan-Rios, 31, is facing murder charges two weeks after a shooting. Man found stabbed to death in Voke Park. He pleaded not guilty.

Alycia Wilhelmsen, 35, of Revere, is also charged.

The man stabbed on Nov. 1 was identified as Juan Osorio, 40, of Chelsea, according to the prosecutor.

Pagan-Rios was arrested Friday outside his home in Chelsea, while Wilhelmsen was arrested at his home in Revere, the office said.

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