Regarding the explosion case of the Winchester House, Kieran performed multiple speculations based on the clues in his hand.
His final conclusion was Barney the Jackal helped Brigal to dispose of the stolen goods, so he bought the entire Winchester House and to cover his traces, he killed the original owner's family of three, thus killing the witnesses and eliminated the evidence.
Then, the stolen treasures from Edland Museum attracted Symende Augen as a buyer.
Though whether Barney the Jackal raised the price on the spot or Symende Augen wanted to double-cross him, or even some unexpected player interrupting in the midst of the trade, accidents happened and the entire Winchester House was blown sky high.
It was the general conclusion that Kieran could think of but after Anne Aldrich Augen told her side of the story, Kieran was forced to refute all of his theories.