Fishy story. Can you prove ownership of 18wPAqgrHYBoNXrxV6w7kc8dVdTfkCCrFC by signing a message with your private key?
This will validate somewhat your story. If you can't provide this then you never owned the bulk of these coins and your story is disproved.
18wPAqgrHYBoNXrxV6w7kc8dVdTfkCCrFC
bitasset get hacked
H6FSLpb/88kMQ7Vz3jqnQqDT6KBaKDQXrPuulUoiNRUgcykQtzpZw+hJxqIfuQra2GYF8eMYTX69cHn/i9CSfLA=
Verified....
Damn that sucks, dude. I'm so sorry. I would police if I were you, and don't give up. If you were on the phone they can trace call records and stuff, but you have to act fast before info is lost.
Good luck...