tony due kopi is yowl side mattoon high school with how the story unfolded.morning. >> reporter: when students return, they're going to finding their classrooms and books exactly where they left him. they say he acted alone, and this could have been much, much worse. >> i have a 911 call. shots fired at the high school. >> reporter: more than 100 police officers raced toward the chaos at mattoon high school just after 11:30 a.m. on wednesday. >> kids are all over the place. >> reporter: students and faculty running for safety reported a shooter in the school's cafeteria. >> four i have a caller advising white male, white t-shirt. >> reporter: braeton davis was one of the students in the cafeteria when another opened fire. his knuckles were grazed in the shooting. >> that's when i looked left and the person was holding the again gun and he fired three or four shots. >> reporter: another student was struck with two or three gunshots but survived. the police say the teacher responded quickly. >> if she had not responded quickly, the situation would have been a l