tammy elliot is there with details. good morning, what's the latest? >> reporter: police are still here at the school this morning investigating after they say that 15-year-old student turned on his fellow classmates yesterday afternoon in school. and while everyone is relieved, they are still asking why this happened. but they're glad that 23 students and a teacher are alive. students at wisconsin's marinette high school are relieved but shaken this morning. >> i'm just, you know, scared to go back to school. because you never know what can happen. it could happen again. >> reporter: just before classes let out monday, police say a fellow student pulled out a gun in class and fired two shots. the 15-year-old gunman then took 23 other students and his teacher hostage. >> he was not willing to converse with law enforcement, but law enforcement was able to speak with the teacher that was in the room. and we determined that there was nobody that was injured. >> reporter: after several hours, five of the hostages were released. then, after hearing three mo