Innocent until proven guilty yes but there are many situations where circumstantial evidence has provided a guilty sentence.
Now, I read some of this Well's report last night. Very boring stuff. But what I got out of it was this. The NFL doesn't really care that the footballs were deflated. They actually knew going into the first quarter that they were. They didn't do anything about it. After halftime the 4 balls that they tested of the Colts were also under weight. Brady, while not directly implicated, did know about it. Which is why the word "probable" was used. The text messages between the two guys all but proves that.
This whole thing is ridiculous though. It's the equivalent of driving through a stop sign on a street that's never busy. It's against the law, but it's not a big deal. It's as dumb as people who think pine tar has an effect on hitting a baseball. What's messed up about the situation is Brady lying about it. I love Tom Brady as a QB. I think he's the best to ever play the position. Why he thinks he needed to do this to gain an advantage is something I can't answer. But, he needs to be suspended for trying to cover this up. I understand why, after he was caught, he didn't just admit it. He was probably scared he would have been suspended for the Superbowl. I don't blame him for lying then, but he's still sticking to the story. It's not a good look at all and if I was Goodell, I'd suspend him half the season, a fine and dock the Pat's a few draft picks. I get they weren't blamed for this but maybe they'll keep a closer eye on this kind of stuff in the future.