No you don't. The only people who benefit from proposing that you need to be an expert to understand what your eyes can plainly see for yourself are grifters trying to sell you on their bullshit conspiracy theory that they invented to get clicks and views on their social media.
In this day and age you need to be a medic, a soldier or an educated man to figure out the most basic fact of life, whether an individual is dead or not, or whether he's even real at all. We're cooked.