> Since at least in January, Shkreli has been under criminal investigation by the United States Attorney’s Office for the Eastern District of New York, court records show. And Shkreli is not alone—some of his business associates have also received grand jury subpoenas in the case.
Here's a Newsweek article from September 2015, when the Turing Pharmaceuticals story broke: http://www.newsweek.com/martin-shkreli-drug-manipulation-dar...
> Since at least in January, Shkreli has been under criminal investigation by the United States Attorney’s Office for the Eastern District of New York, court records show. And Shkreli is not alone—some of his business associates have also received grand jury subpoenas in the case.