the navy says a second seal has died following a training accident in a swimming pool at a base in virginia .
the 34-year-old marihugh and 32-year-old special warfare operator 1st class seth cody lewis of queens , new york , were found unresponsive on friday at the bottom of the combat swimming training facility at joint expeditionary base little creek-fort story .
lloyd says both sailors were members of naval special warfare group 2 .