BERLIN (AP) — German prosecutors say the 26-year-old man who tried to extort $100,000 (euro67,258) from former supermodel Cindy Crawford has turned himself in to police.

Prosecutors in the southwestern city of Stuttgart said Tuesday that Edis Kayalar walked into a police station late Monday.

He has been charged with one count of extortion in the U.S. If convicted, he could face up to two years in prison.

Kayalar allegedly threatened to release a photo of Crawford’s daughter bound to a chair and gagged when she was 7. According to court papers, the girl says a former nanny took the picture as part of a “cops and robbers” game.

Kayalar is to appear before a judge later Tuesday who will rule on whether he is to remain in detention.