It's not cropped, it's a different photo. 5 separate photographers are known to have captured the event, who each took multiple photos. Many of whom were on different floors of the same hotel. Jeff Widener of the Associated Press took one of the more famous telephoto shots from the 6th floor of the Beijing Hotel, while this wider one was probably taken by Stuart Franklin of Time, higher up in the same hotel.

~~Yeah, I like posting the full version every now and then because not many have seen it. *sus noises. slowly reaches for tinfoil hat~~

There are multiple photos of the venerable Tank Man.

Yeah I've seen this before. The well known one doesn't hold a flag to what this man was really doing.