Investigators are sifting through the remains of a home that caught fire earlier this week in Rapid City, killing four people, and fire officials say the investigation could last for months.
Killed in the Tuesday night fire were 51-year-old Marcia Rock, 9-year-old Thomas Rosado, 5-year-old Dustin Rosado and 3-year-old Marquez Hawk Wing.
Authorities say early indications show human actions may have contributed to the cause of the fire.
Lt. Brent Long of The Rapid City Fire Department says insurance investigators were among those at the scene Friday.
A crew is erecting a chain-link fence around the house to prevent the public from accessing it. Long says the fence is for security and safety because the house is not very stable.