Former U.S. Attorney for the Eastern District of Virginia, Jessica Aber, who was found dead at the age of 43 by Virginia authorities on Saturday, was at the helm of high-profile investigations into intelligence leaks, allegations of war crimes against Russian-linked individuals and people suspected of providing sensitive U.S. technology to Moscow before she stepped down at the start of the year. Why It Matters Aber, an appointee of former President Joe Biden, resigned in January after President Donald Trump was inaugurated. She had risen to lead one of the most important federal prosecutor's offices and roughly 300 prosecutors, civil...