The cause of a deadly fire​ at the Gabriel House assisted living home in Fall River, Massachusetts has been narrowed to two possibilities.

Resident Steven Oldrid alleged that he was “trapped in his room, suffered smoke inhalation, respiratory distress, and loss of consciousness” during the July 13 blaze.

The exact cause of the fire at the Gabriel House assisted living facility in Fall River may never be known, but investigators have narrowed the cause down to two possibilities, officials announced Tuesday afternoon.