WARNING: Some may find the photograph of the deceased child, included below, disturbing
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The latest information authorities have on the little boy is that they believe he died about October 17-18, 2017, and was put into the water in the Galveston County area.
Galveston police release actual photo of dead child in hopes that someone can identify him
Autopsy results are inconclusive about how the child died, but he did not drown. His body showed signs of neglect and injuries consistent with abuse, detectives say.
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Police search to identify child found dead on Galveston beach
An artist sketch was created of Little Jacob in an effort to help someone to recognize the boy and come forward with information about who he is and why he was found along the seawall.
Investigators believe Little Jacob is 3 to 5 years old. Billboards with a sketch of the child were put up from Texas to Kentucky.
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After investigating hundreds of leads, and coming up short after using DNA and fingerprints in an effort to identify the boy, authorities have taken the unusual step of releasing his actual photograph.
WARNING: Some may find this photograph of the deceased child disturbing
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The FBI is offering a $10,000 reward for information about the child and the family members who were caring for him at the time of his death. Tips can be called to 1-800-CALL-FBI.
"We believe someone out there knows something or has seen something that can help us in this investigation," said Ed Michel with the FBI.
TIMELINE: What we know about 'Little Jacob'
'Little Jacob' timeline