An expert explains why Jaycee is speaking out now.

Poor Jaycee Dugard, 29. She suffered through 18 years of horror being held captive by a sex offender Phillip Garrido and his wife, and giving birth to his two daughters. Now after living in seclusion since her rescue last summer, Jacycee and her mother, Terry Probyn, have released exclusive home videos to ABC, which aired this morning on Good Morning America, and more will air tonight on 20/20 and Nightline. Read more and watch video