Saturday marks one year since the sinking of El Faro on Oct. 1, 2015.
Thirty-three people on the Jacksonville-based cargo ship were lost when the ship hit Hurricane Joaquin.
The U.S. Coast Guard is still investigating why.
Action News Jax takes a look at the investigation in "El Faro: Lost at Sea." We speak to family members, the lead National Transportation Safety Board investigator in the case and push for answers to prevent the next maritime tragedy.
You can watch the special in full in the videos below:
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