Was Resource Officer too rough, or doing his job?

http://www.nytimes.com/2015/10/28/us/spring-valley-high-school-sc-officer-arrest.html?_r=0

I am a little surprised this has not made it to the Events forum? It would appear that this gal had three warnings when it came to either putting the phone away, or leaving the classroom .... and like so many of the kids having less than desirable confrontations with "John Law" she got what she was begging for. A rough take down in a small space/ classroom.

First the teacher admonished her to get rid of the phone and stop disrupting the class. Then the VP came and insisted she either put the phone away or leave.

Both pleas for her cooperation fell on her defiant, deaf ears. So the SRO was called in. If you watch the recent video on this confrontation, you will hear him politely request that she come with him. Only after her continued resistance to the requests of all the adults in charge, did she put up physical resistance, escalating the situation, to the point that after she slugged the SRO in the neck and tried to lock her legs to the desk, did she get tossed to the floor.

From there, the SRO pushed her resisting body towards the front of the classroom in order to put her in a place that was not in close proximity to other students and desks. This action was needed in order to protect the girl, fellow students as well as himself. Once again the SRO is clearly heard offering to help her to her feet, only to have her kick and slap at his attempt to gain control of the situation. This is when he took another defensive action and proceeded to cuff her.

I agree it looks like it was an out of control cop, picking on a poor defenseless gal, but looks can be deceiving. I say he used necessary force to regain control of a disobedient teen, out to disrupt the classroom and defy her superiors. Surely she had ample opportunities to comply with her teacher, the vice principal and the SRO! However the ever growing court of public opinion micromanaging everything the police do, is making more out of this than should be made.

So what say you?