Assault is a crime. Sexual assault is a crime. Theft is a crime. Why complain to your college about it?
Call the police. Their number is 911. Easy to remember, even if you aren't so good with numbers.
Now if your only complaint is bad manners, I suppose that's another matter. I suppose a college has the power to enforce gentlemanly and ladylike manners if they wish to, but, if so, I am not impressed. Manners, like Codes of Conduct and Codes of Honor, are so old-fashioned, aren't they?