kevin tubbs. >> i know that she was there, okay? i know she was. >> reporter: kevin tubbs.m back then was hauling hay and why was he so important? because after six years during which tuff's war he barely registered the fuss over the harris case, he picked up a paper and saw the story of cal's conviction, and. >> i seen that and, you know, i started, like, recalling, you know, thinking like, oh, my god. >> reporter: just like that! he suddenly knew, he said, that what he saw the morning after 9/11, the morning michelle harris disappeared, was important. it was between 5:30 and 6:00 in the morning, he said, he was hauling a load of hay. >> as i was going by the harris property, there was a blond woman out there and a young gentleman, you know, in his early 20s. >> reporter: standing by a pickup truck. >> my lights were right on them. >> reporter: hardly more than ten feet away, he said he looked straight at the young man, saw he was dark haired and muscular and visibly angry. >> he looks at me like this, like what do you want? >> reporter: and the woman? she was looking down