I looked [1] at all the prominent whistleblowers in the last ~50 years, and while some people have been seriously harassed and felt their lives were in danger, there's only a single case where someone was plausibly murdered by a private company. (Governments murder whistleblowers all the time.)
Interestingly, it was in the 1970's and the woman blew the whistle for safety practices around the handling of plutonium!
Interestingly, it was in the 1970's and the woman blew the whistle for safety practices around the handling of plutonium!
[1] https://twitter.com/dschwarz26/status/1786133630474977785