1) Sorry for your loss.
2) This is a scam accusation thread - https://bitcointalk.org/index.php?board=83.0.
3) Stop using shady mixers, and trust nobody unless already extensively proven by others to be trustable. Then trust little.
4) Use Wasabi for Coinjoin mixing - https://www.wasabiwallet.io/.
5) Use Chipmixer for traditional mixing - https://chipmixer.com/.