their cell phones. >> and they are going straight to this location. >> what happens to the cell phones once they are here? >> her cell phone goes dark and remains dark. his stays on and we see his cell phone leave here and go back to evansville. >> i see a didn't miss a beat when he was confronted with that information. >> he insisted he left halee alive and well with her wallet and phone at the soccer field. investigators question that too. their analysis shows her phone had been in the same location as isaiah's phone hours later when he was long gone from the soccer field. the detective pressed isaiah to explain, moving his chair closer. isaiah's explanations kept changing.