Teenage girl's terrified last message hours before she went missing in Houston floods

A 16-year-old girl left a terrified final Facebook post before going missing in the Houston floods.Devy Saldivar is thought to have been killed along with her siblings and great-grandparents after their van was submerged.Devy was travelling in a van along with her great-grandparents and younger siblings Daisy, 6, Xavier, 8, and Dominic, 14, when they were swept away while trying to escape the rising water levels.