The FBI reached out on Tuesday as part of a national effort to identify a "John Doe" agents believe has critical information for an ongoing child sexual exploitation investigation.
"This is a national push," said Amy J. Thoreson, spokeswoman for the FBI Baltimore. "However, someone in our area may have information or recognize the john doe."
The man – identified only as John Doe 29 – first came to the attention of the National Center for Missing and Exploited Children in January 2008, the FBI said.
The man is believed to have information about the identity of a victimized child, the agency said in a statement.
He is described as 30-45 years old, with dark hair and a tan complexion.
In addition to his photo, investigators for the FBI and the National Center for Missing and Exploited Children released enhanced images of a distinctive ring he wears on his left ring finger, one of the victim's blue and white Nike brand tennis shoes with hook-and-loop closure and the area where the photos were taken.
The background where the images were taken. Additionally, the individual is seen wearing a white, black, and red shirt with what appears to be a design and/or writing on the sleeves.
Authorities say there is no evidence that he has any connection to Maryland, D.C. or Virginia, saying, "there are no specific details linking the man to a particular state or region of the United States, and both his identity and whereabouts are currently unknown."
The effort to identify the man is part of the FBI's Operation Rescue Me and Endangered Child Alert Program initiatives, both partnerships of the agency and the National Center for Missing and Exploited Children to identify victims shown in child exploitation materials including pornography.
The FBI added, however, that there are no charges against the man, wanted only for questioning.
Anyone with information is asked to give tips at https://tips.fbi.gov/ or on the FBI's toll-free tip line at (800) CALL-FBI or (800) 225-5324.