He was in the "at risk" category (>60 and obese).

And likely wasn't properly treated with any of the available and proven drugs either.

Not sure if he was generally "antivax", but being against an experimental treatment with zero longitudinal studies, question marks and multiple safe and effective treatments available is anything but tinfoil.

The contrary position, e.g. believing for-profit corporations that have been convicted of fraud numerous times, however most certainly is.