No, just the fact that he ran inside and got knives to chase the kids off and he's fought repeatedly in the past. But we'll see if it's true. To me he reminds me of a redneck skin head type (not necessarily a neo nazi) that is racist and lashes out. It won't surprise me to find out that it is true but time will have to tell. It doesn't justify what happened to him. The idea of mob retaliation in any form for any reason is very scary. So is the way people just read headlines and get outraged without all the facts. The second article paints a slightly different picture. And I'm sure future articles will as well.
An example, there's a difference between the mob forming and stomping out to the task with the motive of "Justice for Trayvon" and one person in the mob saying "well this is justice for Trayvon" at the end of the attack, which is what the evidence so far shows. They have two people who heard the same man say this. The way the title reads it suggests that retaliation for Trayvon was part of the motivation. The way the article actually reads, and the subsequent article was that this man has threatened these kids repeatedly in the past, even with knives for playing basketball and refusing to move for traffic, and the parents and family members got mad.