Troopers are investigating a boat crash that happened Tuesday afternoon in Alabama’s Mobile County that left one person dead. It happened in Bayou Sara, south of Gunnison Creek around 12 p.m. 3 people were on the two vessels that were involved in the crash, including the one person who was killed. The two others were injured, and one was taken to a local hospital for treatment. The names of those involved have not yet been released.