M.B.
N., I have a child who had the exact same issues in Kindergarten. If he hadn't been so smart, he would never have moved on to first grade. Kindergarten was pointless and he didn't end up learning a thing. You mentioned a paraprofessional... is this one for the entire class or assigned specifically to your child. I would ask for a functional behavior analysis to be completed. This will help you all figure out why he is doing this. He could have ADHD or sensory processing issues that may be causing him to have this impulsiveness. I am of the mind set that almost all children who act this way must have something holding them back. Why would they want to act this way otherwise when all it does is get them in trouble.
To Mallory - you said, "all of the moms knew about him and discouraged their kids from going near him" about the other child similar to this one and that you requested that he not be in their class. Encouraging children to ignore the child or not include him in activities is not going to help things at all. You are basically encouraging children to bully that child. It broke my heart to read that sentence as I remember that my son was never invited to play dates or birthday parties - to think it may have been more the parents than the children is just horrible.