Presumed suicide? It's not difficult to determine. Just look at the coroner's report or the death certificate. They should ask his partner lots of questions. But......I wonder if the people trading BTC like this have a Trading background, or if it is specific to BTC, and they just thought that Trading would be fun or somehow legitimize their profession.
The below tells me he was simply a manipulator and must have done this multiple times before something went wrong. Who in their right mind would give someone 100x leverage in crypto unless they knew it was a sure bet!? "The trader, who was the co-founder and CEO of cryptocurrency market analysis platform BTE.TOP"