When Zara Qairina Mahathir’s body was found in a drain outside her school dormitory in Malaysia last month, the official explanation only prompted more questions, both from her grieving family and many others.The 13-year-old was pronounced dead on July 17, a day after she had been found unconscious outside her Islamic school’s dormitory building in Sabah’s Papar district.Preliminary police findings suggested she fell from the third floor of her school building, but the precise circumstances...