A third person has died from injuries sustained in a house explosion in Plymell.
The explosion happened on June 28th.
The mother, Kelly Unruh, died from her injuries.
Last week, Riley Unruh died from his injuries.
He is the younger brother of 17-year-old Spencer Unruh who died at the scene.
The investigation determined that the probable cause of the explosion was due to a concentration of natural gas.