Investigators say they have a suspect in custody in connection with the death of Mollie Tibbetts. He was identified as 24-year-old Cristhian Rivera. Rivera was picked up for questioning after police saw his black car on video from a home surveillance camera in the area where Mollie was jogging. She had last been seen on an evening jog in the town of Brooklyn, Iowa five weeks ago. She was reported missing when she failed to show up for her camp counselor job.