The first thing to know about the death, contrary to assumptions, is that it wasn't from the experimental RNA-modifying covid-19 vaccine. It actually came form the misnomer of a so-called "control group".
Why a misnomer? WHy so-called? Because normally in a control group you give a placebo. You're supposed to give a saline placebo that does nothing. That's what most people implicitly understand by a placebo control groups: that it's a saline injection.
But the pharmaceutical/medical industry is being deceptive. Instead of a neutral saline solution for the control group, they are giving them another vaccine. The covid vaccine trial isn't the first time they've done this either. Almost all vaccines have been tested this way.
Why? The excuse to not do true placebo control group trials, is that if you get the tested vaccine, your arm will be sore afterwards. Whereas if you just get saline, you're arm won't hurt, and you would know you didn't get a vaccine. So they give everyone a vaccine to make sure everyone gets a sore arm and they can't know if they got the covid vaccine or not whatever vaccine is being tested.
The most recent big pharma trial to do so was the expensive remdesivir, which is less effective than the cheaper hydroxychloroquine.
So here we are with the AstraZeneca trial. Someone died, but in the "control" group.
Yes, vaccine injury is a reality despite the ignorance or denial of many. The US "vaccine court", established in 1986 to remove liability from big pharma vaccine manufacturers, has awarded over $4 billion for vaccine injuries from various vaccines.
This death is another case of vaccine injury from an already approved vaccine, MenACWY, a vaccine for the meningococcal bacteria. This is the vaccine given to the "control group".
It's odd that even the NIH site lists the the AstraZeneca control group placebo as a saline injection, because it isn't:
Adult participants in both the Phase II and Phase III groups will be randomised to receive one or two doses of either the ChAdOx1 nCoV-19 vaccine or a licensed vaccine (MenACWY) that will be used as a ‘control’ for comparison.
Even with all the studies of flu shots increasing the risk of catching a coronavirus infection, and people vehemently denying that those studies don't apply to the oronavirus SARS-COV-2, the "vaccine" is made from the common cold coronavirus. Why would that work at all against SARS-CoV-2, while flu shots would only increase common cold coronavirus risk and not the new coronavirus? That's some mental gymnastics from people who want to deny any validity to flu shots increasing the risk of covid-19 infection.
ChAdOx1 nCoV-19 is made from a virus (ChAdOx1), which is a weakened version of a common cold virus (adenovirus) that causes infections in chimpanzees, that has been genetically changed so that it is impossible for it to replicate in humans.
Another source in the EU Parliament also notes the "control" group using another vaccine instead of a saline solution:
The Commission has pledged to purchase 300 million doses of the ChAdOx1 vaccine produced by AstraZeneca (AZN). However, it appears that the clinical trials conducted by AZN to ascertain the side-effects of the vaccine do not comply with the standard protocol followed by pharmaceutical companies to verify the efficacy and safety of medicinal products. Instead of using a control group of test subjects injected with a saline solution as a placebo, the AZN clinical trials use injections of the meningitis vaccine Nimenrix (Pfizer)
There have already been deaths from the meningococcal vaccination, as noted in the records of the Vaccine Injury Compensation Program (VICP), aka the vaccine court:
as of September 1, 2015, including 2 deaths and 45 serious injuries
Vaccine can work safely, and they can and have injured many, and they can even kill you in some rarer cases. I doubt the participants int he trial knew about vaccine injury realities, nor that they were told they would be getting another vaccine if they happened to be in the control group.