CANTON — St. Lawrence County District Attorney Gary M. Pasqua announced Thursday, Feb. 1 the sentencing of Londell Dyson, 34, of Dutchess County for his convictions of first-degree manslaughter and second-degree assault.

A St. Lawrence County trial jury found Londell Dyson guilty in October of killing his cellmate while housed at the Gouverneur Correctional Facility.

Dyson was sentenced as a persistent felony offender after it was determined at a separate hearing that his criminal history and the nature and circumstances of his crimes were such that an enhanced sentence would best serve the public interest, a press release from Pasqua said.

Londell Dyson was sentenced to an indeterminate term of incarceration of 20 years to life on his first-degree manslaughter conviction, and an indeterminate term of incarceration of 15 years to life on his second-degree assault conviction. The sentences will run concurrently.

Pasqua commended Assistant District Attorneys Jamie Biondolillo and Michael Abbruzzese for their work in assisting him to secure this conviction.

He also thanked the New York State Department of Corrections and the New York State Police for their assistance with the prosecution.