It's an inconsequential fact with no relation to his death, i.e., correlation does not prove causation. Vaccine side effects (apart from 1 in 10MM risks, which can't be worried about) are always acute and occur within a day or so.
Also, as Derek Lowe said so well (posted this before), "if you take 10 million people and just wave your hand back and forth over their upper arms, in the next two months you would expect to see about 4,000 heart attacks. About 4,000 strokes. Over 9,000 new diagnoses of cancer. And about 14,000 of that ten million will die, out of usual all-causes mortality. No one would notice. That’s how many people die and get sick anyway." It's also why "excess deaths" are so important as a double check that the COVID death numbers we're seeing are fairly accurate, if a bit underestimated.