Menachem Deutsch turned himself in to police on Sunday.
He's charged with sexual abuse and acting in a manner injurious to a child.
Deutsch is accused of luring boys into a Brooklyn synagogue and then sexually assaulting at least one of them.
Police say the sex attack happened during the afternoon on Wednesday, June 22.
Police say Deutsch lured a 12-year-old boy into Simcha Hall, a Borough Park synagogue located at 50th Street and 15th Avenue.
Once in the basement, police say Deutsch sexually assaulted the boy.
Police say about an hour later, a second boy, 11, was confronted by Deutsch in front of the synagogue.
That boy was not sexually assaulted but was lured into the synagogue.
