[Renaud]

JK Rowling analysis was post-facto, she wasn't outed by the analysis, the leak came from her lawyer's wife [1].

The analysis added weight to that revelation but it wasn't enough in itself to confirm it for sure.

1:http://www.bbc.co.uk/news/entertainment-arts-25575269

[mVChr]

I'm guessing it's now her ex-lawyer's wife.