2 people seriously injured in Old Hickory boat explosion News by: Tim Dowling Posted: Aug 14, 2015 / 05:32 PM EDT / Updated: Aug 14, 2015 / 05:32 PM EDT OLD HICKORY, Tenn. (WKRN) – Authorities have responded to Blue Turtle Bay Marina in Old Hickory after two people were seriously injured in a boat explosion. Details are extremely limited. We will have updates as they become available.