The mystery of John Locke's death will be revealed in the next episode of "Lost". In "The Life and Death of Jeremy Bentham", Locke's fateful mission off the island as Jeremy Bentham is revealed. The episode will air February 25 as the seventh episode of the season in place of this week's "316". Both were written at relatively the same time but producers thought it would be "cool" to switch them.
In several on-set photos and spoilers released back in 2008, it was revealed that there will be the re-appearance of Malcolm David Kelley aka Walt. The son of Michael shares a scene with wheel chair-bound Locke at a school. Michael Emerson aka Ben also spilled, "The writers would say that Walt ... left the island at a time that wasn't key. It's not just about the six who left; it's about when and how they left."
Other scenes are a three-car crash involving Locke, Hurley meeting Locke and Lance Reddick at Santa Rosa, and Reddick gets shot at a graveyard.