mr. yantsos was arrested again. he is the head of security here at the high school. he was also a girls' basketball coach a few years ago. we have court records that say that a girl mr. yantsos is accused of having sex with, told police that the two had been in contact. these records that we have say that then the 17-year-old girl said it was true. sources with knowledge of the case say mark yantsos is in the hospital undergoing a mental evaluation. police re-arrested the school security officer friday. he's accused of having sex with a 17-year-old student -- again. yantsos is the head of security at richard montgomery high school in rockville. a lot of students know him. >> this guy was entrusted with our security and he was head of security, and to think that he's capable of doing something like that is really horrific. >> a lot of people are just kinda disgusted, like why? >> reporter: we tracked down court documents that say after yantsos posted bond and got out of jail for the initial accusations of child sex abuse, he did it again, same girl. the documents say