Those were my thoughts too when I was reading the article on Bloomberg. It indeed looks like suspicious behavior.
Regarding whether he actually died or not, of course we can't be 100% sure, but here's what is said in the Jennifer Robertson Affidavit uploaded by Coindesk to scribd:

Source:
https://www.scribd.com/document/398721572/Jennifer-Robertson-AffidavitAfter researching a bit more I found the Death Certificate shown on various news sites:

I think people from India can enlighten us on whether it's easy or not to fake such things in the country.