Wuolou's body was discovered in her Rome apartment by police after her brother raised concern that she wasn't answering her phone. She was seven months pregnant and suffered from diabetes, which can prove dangerous — even fatal — during pregnancy.

The Vatican, however, has called for an investigation into the woman's death. Police have interviewed her brother, her ex-husband and her most recent boyfriend, who is believed to be a policeman employed by the Vatican, the Italian newspaper Il Messaggero reports.

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