nor the one you gave a link to claims he was placed under arrest before he was assaulted.
I didn't give a link and the article said he said something to the effect of "get your hands off me" as security took hold of his arm. I wouldn't call the security personnel response as an assault.
Sorry about the reference to the link. I had you confused with another poster.
As to him being assaulted: He was leaving the building as instructed by the security guard. Nothing in any of the articles offered indicated he was a threat to anyone but the cop walked up and grabbed him. You wouldnt call that an assault?
If you were leaving a building and someone grabbed you, what would you call it? Some here want to ignore the facts and insert hypothetical scenarios, or make claims that are demonstrably false. But the facts are, he was told to leave. He didnt leave fast enough for the security guard who went and got two cops. When the cops got there he was on his way out like instructed. One cop grabbed him.
Now, like some here, you may wish cops could just walk up and grab anyone they want. but that isnt the case (yet). From everything we know now, clearly, the cop assaulted the student.
Hopefully, the school will do a full investigation (not just leave it to the UCPD to investigate) and we will have more information later. Then we can make a better determination.