welcome back to "dateline extra." returning to our story, here again is dennis murphy. >> where was meredith hope emerson? could she still be alive somewhere out there in the national forest? and did the 24-year-old hiker have a prayer if she were indeed in the clutches of mystery man gary hilton? the search on blood mountain went into a third day. >> we had the hope. we were there from sunup to sundown plus. we were there through the night and the cold. if anybody could survive, it was meredith. if somebody could fight somebody like that, it was meredith. >> meredith's parents had flown in from colorado and joined the search. peggy bailey, a family friend was their spokesperson. >> let me tell you something, meredith emerson could do