By Tiffany Terrell A Trump employee who has become a key witness after telling the FBI they were directed specifically by the former president to move boxes of documents into Donald Trump’s personal residence after Trump was sent a subpoena in May, The Washington Post reported Wednesday. That description of events was apparently corroborated by security-camera footage, which showed people moving the boxes into Trump’s office at Mar-a-Lago after the subpoena was received. Here’s former U.S. Army prosecutor and NBC News legal analyst Glenn Kirschner giving his two cents on the topic. Washington …