Stieg Larsson supposedly inspired by witnessing gang rape at age 15?

[DirtyMartini]

I had never heard this, and it seems extraordinary to me that I hadn't, given how massive the cultural presence of his books has been recently.

I haven't actually read them; I haven't seen the film (films?) either. Just clicked on this Radfem Hub article and it has left me . What do you all think? Has it been discussed before? (I searched "larsson rape" but didn't see anything) Do you think it is likely to be true, or (as suggested in comments to the linked post) more likely that he made it up as a convenient PR "angle"? Either way seems horribly exploitative and troubling.

a friend trying to make money seems plausible. I didn't realise he died in 2004, I only read the article sometime last year so he probably didn't get to give his approval
Will definitely have to read them now, if only to give some semblance of validity to my opinion, but am wading through feminist-pleasing SF at the mo.