From reddit:

Aaron Swartz was a man who was a part of a whoooole lot of really cool things. He helped to make a thing called "RSS" which helps people learn all the stuff they want to without going to all the different websites that that takes. It's like if you want to make a sandwich, but normally you'd have to go to a bread store, a meat store, a cheese store, and a vegetable store. RSS makes it so you can get that all at once (and enjoy your sandwich much more easily).

Aaron also was part of a group of guys who helped give out information from "PACER", which is a big system full of information about what happened at courts. But, even though all of this information should have been free, they charged people for it. Imagine if each time you asked your teacher a question you had to pay a quarter. Even though that's their job, and it should be free, they made you pay. Well that sure did make some law-people mad. They started to investigate Aaron, but eventually stopped when they realized Aaron was right.

Aaron did some more stuff, too. You know this website you're on? Aaron was a big part of it at the very beginning. A lot of people call him one of the founders, but that's not entirely true. What is true is that Aaron helped to shape and mold and make this website what it is today. It's like when mommy buys you Play-Doh. She actually started it, but you're the one that made the amazing sculpture out of it (with help from your friends, of course).

Aaron also did something that made some people pretty mad. You see Aaron thought that information should be very free. He though that people like you, and me, and everyone else should be able to read as much information as we could on stuff. He thought that the work that scientists did at colleges should be seen by everyone! So he went to MIT to access JSTOR, basically a virtual library of science, and went "out of bounds" according to MIT. He went somewhere he wasn't supposed to go, and went there to try to get all this information and science from JSTOR, which he was actually allowed to do. The problem was like this though. Imagine Aaron went to the library. He can check out as many books as he wants, right? What Aaron wanted to do was check out every book, and make sure that everyone around the world had the same chance to read them that he did. But in order to check out those books, he had to go behind the desk, which was a no-no.

So what happened is that Aaron got in trouble with JSTOR, the library, and with MIT, who is pretty much the librarian. Eventually, JSTOR decided they didn't think Aaron did anything wrong, and didn't want to try anymore. MIT was a little slower though, and didn't say much. Then the US Attorney's office came in. They're like the cops that might come to the library. The owners of the library didn't think that you did anything wrong, and wanted the cops to leave. The librarian didn't answer as quickly though, so the cops stuck around and kept asking Aaron questions and checking through his pockets for stuff.

This whole thing was very scary for Aaron. Aaron didn't have a whole lot of money, and if he got in as much trouble as the cops wanted to put him in, he would have to give it all up, and go to prison for a long time. This scared Aaron a lot. This was especially tough for Aaron because he had been really sad for quite some time. It was a special kind of sad that doesn't go away with a tight hug from mom, so it was especially hard to deal with.

(again not my words but I thought it was interesting enough to re-share)