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German prosecutors announced earlier this week that a sex offender — identified in German media as a 43 year old known as Christian B — is being investigated for the disappearance and presumed murder of McCann. The girl vanished on May 3, 2007 while on vacation with her family in Portugal’s Praia da Luz — just shy of her fourth birthday.
Christian B is currently incarcerated, having been convicted of committing sexual crimes against other young girls. Authorities are still actively investigating his connection to McCann, though prosecutors noted they believe the girl has been murdered.
In addition to this, German prosecutors told German outlet Deutsche Presse-Agentur that Christian B is also being looked at the unsolved disappearance of a young German girl named Inga, the Associated Press reported.
Christian B reportedly lived 60 miles south of where 5-year-old Inga vanished on May 2, 2015. She was last seen at a family party in the German state of Saxony-Anhalt, the BBC reported. She has never been found.
Investigators have said the investigation into Inga's disappearance is preliminary.
Investigators first linked Christian B to McCann's alleged kidnapping in 2017 when he allegedly made a disturbing comment to a friend in a German bar — reacting a program on the 10th anniversary of McCann's disappearance playing on the television.
Christian B was a previous person of interest in the McCann case, one of 600 people previously looked at by detectives.
He was reportedly living in and around the Praia da Luz resort area from 1995 to 2007 where McCann was last seen. While living near the resort, he allegedly committed burglaries in hotels and dealt drugs. He held multiple jobs in the area, but authorities claimed Christian B mostly lived a transient lifestyle.
McCann’s parents were initially identified as suspects in their daughter's disappearance by Portuguese police — making both them and the case tabloid fodder. The McCann parents were cleared of suspicion in 2008 and they have actively been trying to find their daughter’s abductor since then.
Madeleine McCann's disappearance was called "the most heavily reported missing-person case in modern history” by The Telegraph in 2008.
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