They keep a heartbreaking, detailed diary of what they are feeling so that they can keep their daughter alive in their hearts, but Gil and Dan Harrington admit to Dr. Phil, in their first talk-show appearance, that they are "preparing ourselves that our daughter may not have been abducted, but also murdered." This special episode of "Dr. Phil" will be broadcast Thursday, November 12 (check local listings).

Dr. Phil reads from their touching journal entries and tells the couple: "You're in our minds and hearts and we're going to do everything we can to keep the spotlight on this."

Morgan Harrington was last seen nearly a month ago at a METALLICA concert in Charlottesville, Virginia. She somehow ended up outside the arena during the show and after an extensive search by local authorities, very few clues to her whereabouts have turned up — except for her purse and cell phone, found in the arena parking lot. Gil Harrington helped her daughter choose her outfit and reported that Morgan was "so excited about going [to the concert]." With the purse left behind, Mrs. Harrington said, "No girl gives up her purse with her information, her make-up, her cell phone. Once we had reported Morgan missing Sunday after the concert the purse quickly went from being a lost item to being evidence in a criminal case."

Dr. Phil also speaks with Diena Thompson, whose daughter was abducted last month and then found murdered three days later. While the Harringtons hold out some hope that Morgan will be found alive, Thompson's worst fears were realized last month when the body of her missing 7-year-old daughter was discovered in a Georgia landfill. Thompson, obviously still overwhelmed with grief, pledged to "stay strong and… be a voice for other children who've ended up like this or who could possibly end up like this."

During the program Dr. Phil urged viewers with any leads regarding the whereabouts of Morgan Harrington to call the Virginia State Police at 434-352-3467. Also, if anyone has any information on the murder of Somer Thompson, they are to call 877-227-6911.

The syndicated series "Dr. Phil" was created by Harpo Productions, and is produced by Peteski Productions in association with CBS Television Distribution. It is broadcast on over 214 stations representing 100% of the country. Since its debut in September 2002, the series has been ranked second among all daytime talk shows and consistently ranks among the Top Ten of all syndicated strips.