On the evening of July 18, surveillance footage near Boundary and Middle streets had shown Mollie jogging. Into the frame came a dark Chevy Malibu linked to Bahena Rivera. He got out and ran after her. Mollie, wearing headphones and clutching her phone, said she was going to call the cops, and he got angry. Bahena Rivera couldn't remember what happened next. His memory was "blocked," he told police, explaining that happened when he became very upset. The next thing he recalled, he said, was driving. He noticed an earpiece from headphones in his lap. That was when he remembered: Mollie was in his trunk. He drove deep into the country and pulled out her body. He dragged it 20 yards into a cornfield. He left it faceup and then drove away, returning one month later with investigators to show them where it was.