at the high school. yes, this student did have contact with our front office. and, yes, his parents were on campus november 30th. and now we are learning ethan crumbly may have had that gun in his backpack during a meeting with school officials and his parents on the morning of the shooting. cnn s shimon prokupecz is on the ground in oxford, michigan, with the latest on the investigation now. we have an active shooter incident. so far we do have confirmed injuries. reporter: new details, including some of the emergency dispatched calls from tuesday s school shooting in oxford, michigan. we have one with a head wound. reporter: police saying today they are confident the suspect acted alone. we have seen no evidence that there was anyone else involved in this situation with him, or anything to follow on. reporter: the investigation