New London — One of the six men convicted in the 2010 stabbing death of Matthew Chew in New London is back in prison on new criminal charges.

Marquis Singleton, 28, of 50 Mountain Ave. in New London was sentenced by Judge Hillary Strackbein Monday to five years in prison for a firearms-related charge and for violating his probation.

Convicted of manslaughter in the stabbing death of Chew, Singleton was released from prison in October 2018. He was still on probation when he was arrested and found to be in possession of a handgun by Norwich police in November 2020. He was charged with two counts of criminal possession of a pistol and one count each of carrying a pistol or revolver without a permit, interfering with police and theft of a firearm.

Police said Singleton was one of several men caught breaking into motor vehicles on Winchester Street in Norwich. When police attempted to contact him as part of the investigation, police said Singleton attempted to flee and was found carrying a firearm.

On Monday, Singleton pleaded guilty to carrying a pistol without a permit and admitted violating his probation. State prosecutors have opted not to prosecute the remaining firearm charges.

Singleton’s full sentence on the probation violation is eight years suspended after five years in prison and five years of probation.

Chew, a 25-year-old artist and DJ who had grown up in Ledyard and was enjoying New London's arts scene, had clocked out from his cook job at 2Wives pizza on Oct. 29, 2010. He was walking on Huntington Street to his Washington Street apartment less than a tenth of a mile away. Six teens surrounded Chew. One asked Chew if he had a lighter and then the group began to assault him. As Chew struggled to escape and asked, "Why is this happening?" another member of the group stabbed him with a pocket knife. The teens fled. Chew was able to tell a passerby that he had been jumped and stabbed. He succumbed to his injuries early the next morning.