Well who are you believing? You have no evidence of anything, just baseless conjecture and paranoia.
Here is the proof!
http://www.freerepublic.com/focus/news/3293794/posts?page=253#253
Cop in photo has finger out of trigger guard. Absolute proof that he killed some bikers.
There were also other bikers who were not members of either group, but were arrested, are being held on ridiculous bail, and have had their property seized.
Other sources have said that there were people arrested who had CCW permits, no priors, etc. Why haven't they been released?
Taken in concert, the appearance is that LEOs on the site have taken control of any and all information sources they can to control the media narrative over the event--including people.
That level of sequestration indicates they want to set the media meme until the news cycle blows over to minimize any forthcoming damage and to possibly give them time to bury "Brady Material" (evidence exonerating the accused).