Very tragic news. A healthy 35 year old dying from a pneumococcal meningitis is extremely rare. In fact, I don’t believe routine vaccinations are done for adults under 65 years. Giving Prevnar to infants is intented to protect them from infection, not necessarily their parents.
BTW – the Internet is already full to the brim with vaccine horror stories, so you’re better off fighting this issue with logic, not scare tactics.