According to nearly every news source in America, Redskins fired Jim Zorn shortly after he arrived back from San Deigo at 2.15am. Zorn entered the training facility and did not leave until 4:45 in the morning. Zorn departed the building, but was NOT escorted by security (contrary to some other reports).
ESPN's Adam Schefter is reporting that Zorn received the news shortly after the team plane landed. Schefter is also reporting that there will be a press conference with more details at 12:30 Monday afternoon.