CNN CNN Newsroom With Carol Costello October 26, 2015 13:19:00
Lucas. a visiting mba student also killed. and marvin stone along with his wife, bonnie. i have a friend with me of bonnie and marvin stone. thank you for joining me. >> thank you for having me here. >> first of all, tell us about the stones. >> well, i first met marvin over 30 years ago, when i was looking at graduate school. he recruited me to come to oklahoma state as a phd student. he was one of my phd advisers. just a mentor. later on, back in 1999, he, again, was one of the reasons i came back to oklahoma state to be a faculty member in the same department with him. i've known him and bo...