More than a dozen people were questioned in the case but most of them have been released, Milliyet reported.

WSJ: Turkish police seek clues in NYC woman's death

Asli Aydintasbas, a columnist for Milliyet Newspaper, said Erdogan is the most powerful and popular politician Turkey has seen in generations.

CNN: Turkish protesters decry 'unprecedented violence'

The Milliyet newspaper said a forensic medicine lab will examine samples from Sierra's fingernails as well as hair and other samples from a blanket found near her body.

WSJ: Turkish police seek clues in NYC woman's death