The DNC operative was murdered in the summer of 2016 in Washington DC. His murder was never solved. According to the lawsuit Seth Rich provided WikiLeaks the DNC emails before the 2016 election, not Russia.
This totally destroys the FBI and Mueller’s claims that Russians hacked the DNC to obtain these emails.
Butowsky claims in his lawsuit:
Ms. Rattner said Mr. Assange told her that Seth Rich and his brother, Aaron, were responsible for releasing the DNC emails to Wikileaks. Ms. Rattner said Mr. Assange wanted the information relayed to Seth’s parents, as it might explain the motive for Seth’s murder.