this is the only known picture -- so colin mcnally goes to work.mcnally supervises the forensic imagingl center for missing and exploited children. and right now he's trying to show the world what jones would look like today.colin mcnally, supervisor, ncmec forensic imaging unit:"when you work on these cases, you really do become attached to them."the jones case is one of ly 7- thousand age progressions crafted by the unit.but with technology -- the artists are pushing their new abilities to new heights.colin mcnally, supervisor, ncmec forensic imaging unit:"for us our greatest tool is heredity -- seeing what commonalities among family members -- share with the missing child."on the other side of the unit -- a robotic arm is used to recreate facial features from the remains of an unidentified child.colin mcnally, supervisor, ncmec forensic imaging unit:"the hope is to be able to provide answers to to families many of whom have been searching for their children for many years."the center first opened its doors in 1984 and since then it's become a valuable tool to law enforcement across t