Maybe the thieves, or someone connected to them, had the seed phrase? They willingly handed over the physical wallet knowing full well they didn't need it to access the Bitcoin later. The BTC isn't in the wallet, it's just a signing device. It would be very difficult to pin down who done it.

Hey Lyn, you should show the entire clip. I agree, bringing up the market is in poor taste, but you chopped off the beginning, and it's important.