One of the 15-month-old twins that was found unresponsive at a Woburn residence on August 15, died on Thursday night. Sources tell necn the boy's name is Noah John Larson.
The twins had been in the care of a family friend on Kilby St. and were transported to Boston Children's Hospital on Monday.
The Middlesex District Attorney, State Police, and Woburn Police say they are investigating the matter.
A DCF spokeswoman provided this statement, “The Department has received a report and is investigating. We are also collaborating with law enforcement in its investigation.”