As the body of a Staten Island wife and mother who was killed while traveling alone in Turkey was flown back home on Thursday, the circumstances surrounding her tragic death remain a mystery.

Sarai Sierra was found brutally beaten and killed last Saturday near ancient walls in Istanbul, after she never made it on her flight home on Jan. 21. At least 24 people have been questioned and subjected to DNA tests, but no arrests have been made, according to The Daily News.

Reports that Sierra had a sexual encounter with a Turkish man two days before her body was found, but prosecutors say they are not concerned with it.

A wake has been scheduled for Valentine’s Day, on the 15th anniversary of the day her husband, Steven, proposed to her. The funeral will be held the next day.

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