Ben McDaniel
... that decompression tanks belonging to Ben McDaniel found following his disappearance five years ago today at Florida's Vortex Spring contained only air, not the gas mix used by cave divers?
... that <a href="./Decompression_(diving)" id="mwBIg" rel="mw:WikiLink" title="Decompression (diving)">decompression</a> tanks belonging to <b id="mwBIk"><a href="./Disappearance_of_Ben_McDaniel" id="mwBIo" rel="mw:WikiLink" title="Disappearance of Ben McDaniel">Ben McDaniel</a></b> found following his disappearance five years ago today at Florida's <a href="./Vortex_Spring" id="mwBIs" rel="mw:WikiLink" title="Vortex Spring">Vortex Spring</a> contained only air, not the <a href="./Breathing_gas" id="mwBIw" rel="mw:WikiLink" title="Breathing gas">gas mix</a> used by <a href="./Cave_diving" id="mwBI0" rel="mw:WikiLink" title="Cave diving">cave divers</a>?<!--special occasion hook for August 18-->