over the country, every race, ethnicity and background but all share the the same last name. doe. their real name is a mystery. these are the faces of 715 children in the united states whose deaths remain unsolved. >> sometimes with these cases, i mean, these children remain unidentified for a ton of reasons. >> reporter: their cases are investigates here today national center for missing and exploited children head kwaurers in virginia. >> all the faces -- >> reporter: the senior forensic care specialist. >> we will never give up hope or stop looking to identify these kids and give them a name and find justice. >> reporter: this is a key facility for law enforcement looking to solve cases involving children since 1984. here forensic imaging specialists use computer programs to create faces of the unidentified. before bella bond's name was discovered, she was known as baby doe and this is where a