Maybe it's about from when he dated Jenny McCarthy (another anti vaxxer but she's down into this rabbit hole of misinformation a lot deeper including herself being prominent in spreading misinformation), I didn't know til recently Jim Carrey was an anti vaxxer, there's some other actors/actress (including Robert De Niro) I never expected to be one, what a shame. (I rarely check out news about celebreties so that might be why)

A list of some from BuzzFeed with sources included in their article, I tried archiving with archive.is and archive.ph but for some reason lately they just stay on infinitely "Loading" at least for me

I didn't know about her parents blaming him for her suicide so I went to dig a bit deeper searching on it and it's a lot worse than that, out of caution for anyone reading this I advise with a trigger warning of substance abuse and relationship abuse, if you don't have a trigger to these here you can read an article from Independent on it: Wayback Machine archived link | Direct link (not archived)