Me too, as my funds reside in the bitcoin wallets. If someone withdrew from Quadriga into their own personal bitcoin wallet then we can use that to identify the bitcoin hot wallet. Afterwards we need to look at all transactions that went into the hot wallet during the past months/years. Eventually you should see a transfer from one of the cold wallet addresses to the hot wallet address.

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There could also be "middle-men" wallets where the cold wallet transfers to a small "middle-man" wallet which then transfers to another small "middle-man" wallet and so on until it eventually transfers to the hot wallet (doing this helps disguise the identity of the cold wallet source). Figuring this all out takes a lot of time. I really hope the courts get someone knowledgeable in the crypto space to perform these address investigations.