A、19. B、9. C、22. D、33. B新闻提到，与该女性失踪和死亡相关的九名嫌疑人已被拘留，故本题答案为B。

The family of Sarai Sierra, an American woman who went missing in Istanbul nearly two weeks ago, was heartbroken after learning that Turkish police found her body Saturday. Turkish police found the woman’s body near ancient stone walls in Istanbul’s Saraybumu district. Police suspected she had been killed at another location. Police told CNN that the body of the 33-year-old mother of two showed signs of stab wounds. However, the police chief of Istanbul, Huseyin Capkin, said Sierra died from a blow to her head. Nine suspects had been arrested in connection with the woman’s disappearance and death. Sierra’s family and friends first sounded the alarm last week after she did not arrive on a return flight from Istanbul on January 22.
1. What were Turkish police unsure about?
2. How many people had been arrested by Turkish police?