The cause of December's deadly house fire which killed three children will remain a mystery.
The Sioux Falls fire department concluded its investigation and has ruled the cause as undetermined.
We spoke with several neighbors in the area today who were surprised the cause is undermined. Some didn't want to go on camera but they all shared similar thoughts.
And without a cause for this fire, they believe many other unanswered questions remain.
Grandmother Barbara Rollinger said finding a cause for the deadly house fire is important for the people who live in this quiet neighborhood.
"Not only for my grandchildren but any other children or anybody around the neighborhood. anyone that knew this family, some kind of closure needs to be made to it. As of right now, there isn't," Barbara Rollinger said.
And for now, the cause is undetermined. Sioux Falls Fire Marshal Dean Lanier explained they looked at all possibilities from smoking to electrical, but without direct evidence, they can't determine what started the fire.
"We can't necessarily say that everything else has been ruled out, so it had to be this, that's not necessarily a good legal way of interpreting the evidence on the scene. what we could not find was evidence of the exact cause," Fire Marshal Lanier said.
But Barbara finds it hard to believe the cause will never be known.
"I feel that with our modern technology, the way it is, that there is no way that they can not find a reason or something that can show what happened and what started this fire," Barbara Rollinger said.
Barbara's daughter Dawn Rollinger's own daughters knew the children who died and thinks a cause would have brought closure.
"I will never forget it. Standing down there, watching it in our pajamas. Knowing that there was nothing that we could do to help," Dawn Rollinger said.
The Rollingers may never get the answers they were looking for to bring closure but on a side note, some people in the area tell me they hadn't even met each other until the day of the fire brought them together.