Just so everyone knows it is possible that Billy flew to Bloomington last night and flew back today before the OKC practice. It is about an 1:45 minute flight in a cessna twin jet. Not to mention they would add an hour going to OKC so it would essentially be 45 minutes in the air. Also there is an underground tunnel from Cooks Hall to Assembly Hall. I'm pretty sure their is an underground parking area as well or at least a back lot so it's very possible have could have been on campus undetected.