“I found no evidence the security guards assaulted you or made threats to your life..”

But, he had been shown these:
http://www.sheilaoliver.org/we-re-going-to-kick-the-f-ck-out-of-them.html
http://www.sheilaoliver.org/council-taxpayer-sworn-at-by-council-employee.html
http://www.sheilaoliver.org/if-i-beat-you-up.html