Video of the press conference is here
What they did was basically establish (under oath, with document trail) that the fossil fuel industry executives knew about the damage that burning fossil fuels did, and decided to cover it up, rather than be forthright with people and legislators. They’re now referring this to the justice department to see if prosecution is possible.
That actually depends a lot on who wins the upcoming presidential election. It’s possible that with pressure, a 2nd-term Biden administration would actually move forward with one.