"A lot of time, a lot of research," Lewis said. "Time spent with Joe. Time researching people around Joe. Joe's past in East Bay [California]. All those kinds of things that way. His past on campus at Oklahoma since the incident. So, there couldn't be any other red flags to say, 'Well, well, maybe...' No, no, no. It had to be clean, and Joe knows that. He knows going forward, it has to stay clean all the time. He's lived on the tip of the sword for three years now, and he's got to continue to probably for the rest of his life."