Officials said examinations of the bodies indicated the cause of death was hypoxia, or lack of oxygen, and that investigators had ruled out suicide or foul play.
James' younger sister, Violet Franklin, told WHO that she used to have slumber parties with Adrianna.
The Sharp family left their hometown of Creston, Iowa, to travel to Tulum, Mexico, on March 14 and were found dead on March 22. They were scheduled to depart from the Cancun airport on March 21 and fly to St. Louis on a non-stop flight.
Iowa family missing in Mexico found dead. The family of four was found in the condo they rented in a tourist complex in Tulum, Mexico. The family of four from Iowa who were found dead in their condominium in Mexico last month were suffocated by gas from a faulty water heater, Mexican police said.
The family planned to then drive about 200 miles to Danville, Illinois, to watch a basketball game Thursday. When the family didn't arrive in St. Louis, family members contacted authorities. Kathleen Joyce is a breaking/trending news producer for FoxNews.com.
Jana Weland , Amy Sharp’s cousin, said the family was aware the water heater was the alleged cause of the leak but officials from the U.S. and Mexico have not told them what the family inhaled. She said they have not yet received a call from the U.S. consulate.
In this undated photo provided by the Quintana Roo Prosecutors Office, a firefighter examines a gas stove in the rented condo where an Iowa couple and their two children died in Tulum, Mexico.
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