The proof is in the helium.
1) Where and when were the helium cylinders obtained?
2) Proof of who bought them, including cc video, credit card receipt, etc.?
3) Crosscheck deceased’s credit card statements.
4) Crosscheck his whereabouts at the time of the purchase.
5) Interview neighbors on whether they saw the deceased lugging cylinders into his house; other visitors; deliveries?
Oh come on now, do you really think the ruling political class, their servants in the judicial and enforcement class and their masters in the donor class care or would even permit those questions to be answered?
Since they can’t even chase up the security camera footages, which must have captured Seth Rich - and anyone following him - on his last walk in Washington ... I guess the answer is no.