It has been confirmed that a murder-suicide was the cause of a Berkshire County fire last year.
Newly-available death certificate information from the Office of the Chief Medical Examiner indicates Luke Karpinski killed his three young children and wife before setting the family's home in Sheffield on fire and killing himself last March.
An official with the Berkshire District Attorney's Office tells
The Berkshire Eagle the office is preparing for the public release of more documents from the investigation, which could shed more light on what happened.
The investigation is still considered open by state police.