Jill Rosenthal was an infant who went missing shortly before her second birthday around 1965. No images of her exist, but a composite age progression has been created based on images of family members.
Case[]
Jill was born on October 27, 1963, along with her twin brother Jack. According to family members, their parents were abusive and often locked the twins in a cage.
Jill went missing sometime in 1965, around the same time Jack was found abandoned in a parking lot in Newark on July 2. At the time, he was believed to be Paul Fronczak, a newborn who was abducted from a Chicago hospital in 1964. The Fronczaks recognized Jack as their missing son and adopted him as their own, with Jack using the name Paul Fronczak for the rest of his life.
Previous age progression
DNA testing performed in 2012 revealed that Jack was not biologically related to the family who raised him and was therefore not the missing Paul Fronczak. Working with genetic genealogist CeCe Moore, he was able to find his true identity, which also revealed that he had a missing twin sister. All photos of the twins had seemingly been removed from family photo albums, or the twins had their faces scratched out.
Jack believes that Jill may have been killed by their parents, who are now both deceased. However, there remains a possibility that she was also abandoned and could still be alive.
The real Paul Fronczak was identified in 2019. He passed away the following year. The identity of his abductor is still unknown.