TYNGSBOROUGH, Mass. (WBZ NewsRadio) — Investigators in Middlesex County announced Monday that human remains were found buried under a garage floor in Tyngsborough after authorities received a tip about a potential murder in the town.
Middlesex County District Attorney Marian Ryan told reporters at a press conference Monday that the investigation began on March 10 when a man called the Nashua, N.H. Police Department to report that a friend told him that he murdered someone a year ago and buried them in the floors.
Authorities identified the friend as Shawn Sullivan. Police said they found a suspicious patch in his garage floor, and when they started to dig, they found human remains…