A man already convicted and on California's death row for the decades-old murders of four women and a 12-year-old girl now faces charges in the slayings of two more women in the 1970s — these two in Manhattan.

Sixty-eight-year-old Rodney Alcala is scheduled for arraignment Thursday. It was unclear who would represent Alcala or even whether he will have a lawyer.

A former photographer with an IQ said to top 160, Alcala represented himself at his California trial that ended with his convictions in 2010.

He was indicted last year in the Manhattan slayings of Trans World Airlines flight attendant Cornelia Crilley and aspiring researcher Ellen Hover, both 23. But it took 18 months of legal maneuvering over his extradition before he was finally brought Wednesday to New York City.