Videotapes taken by Phillip and Nancy Garrido were released by prosecutors Tuesday . DA 's office : Release is part of an effort to improve `` detection of sexual predators '' One clip shows children in playground as Phillip Garrido plays a guitar and sings . The other video shows the couple having sex with one child while another watches from behind.
Videotapes taken by Phillip and Nancy Garrido were released by prosecutors Tuesday . DA 's office : Release is part of an effort to improve `` detection of sexual predators '' One clip shows children in playground as Phillip Garrido plays a guitar and sings . In another , a parole agent searches house , some years before Dugard was found .