The Fire Inspector reports that physical evidence gathered at the scene will now be analyzed. He says it's not known how long that analysis will take.
Earlier, the inspector said the fire likely started in one of the apartment's bedrooms.
Jacob Clarkson and Ross Livermore, both 21, died as a result of the October 8th fire. Two other roommates escaped the blaze. The four friends graduated from high school in Stillwater, Minn., in 2009.
The property is being returned to the owner Wednesday. The cause of the fire remains undetermined.