1 Thess. 4 w/ Gary DeMar Part #3: The Relationship Between 2 Thess. 1-2 & 1 Thess. 4

If the coming of Christ in 2 Thess. 1-2 was fulfilled in AD 70 per Keith Mathison, why wouldn't 1 Thess. 4 be fulfilled in AD 70? Who was the Man of Lawlessness and was he really killed at Christ's coming in AD 70?