There is new information related to that fatal fire in Youngstown that killed five children and critically injured their mother - America Negron Acevedo. 21 News has learned that as the investigation into the cause moves forward what witnesses described as explosions were not what they seemed. There was speculation that there was an explosion before neighbors spotted the deadly fire at the two-story home at 418 Parkcliffe Avenue. But Youngstown's Chief Arson Investigator says there is absolutely no evidence of a gas explosion. As the memorial of balloons, teddy bears, and a Bible continues to grow for five children killed in a fatal house fire and their mother who was critically injured, the investigation is far from over. Youngstown's Arson Investigator says Dominion East Ohio Gas was on the scene Sunday night and into Monday morning and found absolutely no evidence of a gas explosion despite speculation.