building to building attack, their words. a suspect in this police custody. he's said to be a 21-year-old male who was enrolled at the lone star college's sci fair campus. ed lavandera is at the campus. this is such a strange story. >> reporter: well, as you mentioned, it's a 21-year-old male who was a student here, we're told at this lone star community college campus and he's been taken in to custody. and is being questioned. we presume some point in evening, criminal charges will be filed against him and what those criminal charges will be is not exactly clear at this point. but this was a young man here at the campus that we're told by witnesses had to be subdued by three other students who had witnessed the stabbings happening and three students jumped on top of him to subdue him and keep other people from being attacked. but when the call came in to