a composite. >> reporter: there have been 50 million page views of baby doe's picture. >> the center did the composite. very realistic. >> reporter: forensic imaging and age progression are often fairly accurate and can help find the missing or unidentified children. >> i will see a child that's been recovered after 15 years, 10 years and go it is amazing how close the computer generated image is to what the child looks look now. >> reporter: age progression composites have been instrumental in investigations across the country. sarah brinn abducted by her father when she was 3 years old. 3 years later in 2002 she was reunited with her mother. jonathan ortiz was kidnapped by his mother in 1992 after she poisoned his father with an insecticide laced milk shake. his forensic composite helped crack the case to find him. according to walsh's nonprofit organization the national center of missing and exploited children since the beginning of their forensic imaging unit in