Facts: - alt: staff sergeant - battles: '' operation enduring freedom '' ' ' operation desert storm '' ' '' ' - allegiance: united states of america - awards: 30px expeditionary medal 30px global war on terrorism service medal april iraq 2010 campaign medal 30px global war on terrorism - serviceyears: 1980 -- 2004 - birth date: 1958 - name: david w. karnes - branch: 25px united states marine corps - unit: 3rd marine division - rank: 20px Based on these bullet points, write a short biography describing the life of dave karnes .
david w. karnes -lrb- born -rrb- is a retired u.s. marine , who with jason thomas located and helped rescue two police officers trapped in the rubble from the september 11 attacks after the collapse of the world trade center in 2001 .