When a scuba enthusiast embarks on a perilous cave dive alone and fails to return, it’s initially assumed that “the vortex” has claimed another victim. However, lack of a body and suspicious circumstances force authorities to consider other possibilities, including foul play, in this episode of Last Seen Alive.

Sources used to research this episode:

Missing Diver Loved Adventure (Cindy Wolff / The Commercial Appeal via Newspapers.com)

Parents of Lost Diver Pin Hopes for Closure on Team of Dogs (Tampa Bay Times / Ben Montgomery)

Expert: Family Searching for Body That Doesn’t Exist (Jackson County Floridian)

 He’s Not in There (The Commercial Appeal via PressReader)

Man Who Drowned Was an Expert Cave Diver (Tampa Bay Times)

Local Dive Expert to be Featured on TV Show ‘Disappeared’ (Deborah Buckhalter / The Commercial Appeal via newspapers.com)

Beyond the Last Restriction (Ben Montgomery / Tampa Bay Times)

Editorial: Turning Sunshine Into Shadow (Rachel Kaylor / Florida Society of News Editors)

Questions Remain About Lowell Kelly’s Death (Tom McLaughlin / Northwest Florida Daily News)

Theories About Collierville Diver’s Disappearance Swirl in Vortex of Unanswered Questions (Cindy Wolff / The Commercial Appeal)

If you know anything about the disappearance of Ben McDaniel, please call the Holmes County Sheriff’s Office at 850-547-3681.