pulling away from the dock. no one else was on board during the incident. their stories begin tragically. mary neal was trapped under water for more than 15 minutes. anita moorjani was living with final stages of stage 4 lymphoma. mary jo was breathing for minutes at a time. randi kaye talks with people who were on the brink of death who say they left this world for another. their stories, words, answers to the questions we would all like to ask. >> i could see the river bank. i could see them pull my body to the shore. i could see them start cpr. i had no pulse. and i wasn't breathing. one fellow is yelling at me to come back. >> you were unconscious. how do you know all this was