The former US attorney in the Eastern District of Virginia who was found dead Saturday morning had been in charge of some of the biggest cases targeting leaks in the CIA and russian nationals carrying out fraud in America.

Officials are investigating Jessica Aber’s cause of death after the 43-year-old was discovered unresponsive at her home by Alexandria police officers just before 9:20 a.m. Saturday.

Prior to her resignation in January as President Trump took office, the Biden-nominated attorney saw one of her biggest wins in court when ex-CIA analyst Asif Rahman, 34, pleaded guilty to leaking top-secret documents about Israel’s plan to strike Iran last year.