"He was a suspect because he was the last one to see my father-in-law alive," he said. "The kid was so devoted to him. There were only two people in his life, his mother and his grandfather. There was no motive. There was nothing to gain with John dying, he had everything to lose. He's not the type of individual who's aggressive. He'd walk away from a situation rather than attack. Really it's not in his mental makeup."