It's been known there is an investor lawsuit against Theranos, and Theranos has issued a press release denying the charges as unfounded.
On October 14, Fortune reported the 66 page lawsuit was now unsealed (article here). It does not, however, hotlink the article. For an insurance industry update collating information on actions in AZ, CA, and DE, published on October 17, here. Original WSJ coverage on October 10, here.