yes, that link is rather biased, here's one from a little more the other side (
http://college.usatoday.com/2016/07/25/the-whole-leslie-jone...), its almost impossible to find anything objective on it, but I followed it at the time and after looking at both sides, it looked most like he called her a hot black guy and fat (
http://www.vox.com/2016/7/20/12226070/milo-yiannopoulus-twit...), and then his followers as well as Leslie went overboard with racists and ridiculous comments. Her comments have also been extremely racists in the past (
http://www.breitbart.com/tech/2016/07/20/double-standards-le...) so it just highlighted a double standard.
Anyway, he is a troll and Twitter was in its full right even according to their guidelines to ban both of them. They banned him not her. That's the whole explanation for that short sentence which is why I formulated it the way I did because I didn't want to explain it all to people who might not care too much.