Breaking News, Darwin Nominee, Outdoor Life, Police Beat, Reach the Beach, Sea rescue, This Just In!, Top Cops Swimmer walked past no swimming sign to his doom in strong current near dam Posted onJune 9, 2015 Witnesses said Diaz was swimming near a large rock outcropping in the middle of the river when he disappeared. The area is marked with more than a half-dozen signs in English and Spanish warning of the dangers posed by the dam outflow.