You're right - Vitamin E acetate is suspected

Disclosure: I started vaping to quit cigarettes, and it worked really well. Vaping is not exactly healthy, but I am grateful it helped me quit the much more damaging cigarettes I was smoking when nothing else did. Yes, I am tapering off vaping also.

E-cigarettes around 95% less harmful than tobacco estimates landmark review
https://www.gov.uk/government/news/e-cigarettes-around-95-less-harmful-than-tobacco-estimates-landmark-review

The reason people are dying isn't because they are vaping, it's because of *what* they're vaping - and it has nothing to do with flavors.

Counterfeit Weed Vape Cartridges Are Everywhere — and They’re Making People Sick
https://www.rollingstone.com/culture/culture-features/counterfeit-thc-vapes-cdc-vaping-health-alert-875931/

A Thickener Used in Pot Vaping Is a Hugely Popular Black-Market Scam
https://www.inverse.com/article/59207-vitamin-e-acetate-thc-vapes

The CDC is a little behind the info curve in giving people a more precise and useful warning, but I'm glad they're finally getting the word out.

/relurk