dev wants to bury it with himself? afk again?
spoiled child reaction, he doesn't play with his toy anymore but will make a scene if you try to give it to someone else
also that's a big thing in china to get buried with his stuff (cf terracotta soldier

)
have you contacted exchanges? have you showed them evidence of scam and shit? it's bullshit, lots of coins with left devs being took over. the thing he came back after 2 month only to make scenes(after scam) is really such a big problem?
we are currently looking into some key addresses...