Of course there are occasions when its acceptable for police to use weapons to carry out an arrest. Usually they are with armed or dangerous criminals. I appreciate that police are better qualified to judge who is armed and dangerous than I am, but seriously, a college student in a library?

3 guards taking a guy out of a library though? I am pretty sure they could have managed this without assault. According to the official police statement

"As the officers attempted to escort him out, he went limp and continued to refuse to cooperate with officers or leave the building"

If he went limp they could simply have handcuffed him, like police do in this country. I am sure 3 police can move student.