An Iowa family of four was found dead Friday inside their vacation condo in Tulum, Mexico, local authorities reported. Police said there are "no signs of traumatic injury," and a relative of the family reported on Facebook there "was no foul play." Autopsies will be conducted to determine the cause of death, which some reports have suggested was a gas leak. Kevin Sharp, 41, his wife Amy, 38, and their children Sterling, 12, and Adrianna, 7, were from Creston, Iowa.