Marco Markovich
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Head Of Security For 1 World Trade Center ResignsDavid Velazquez had been security director for The Durst Organization, which took over security of the tower in January.

BASE Jumpers Defend WTC Stunt, Say It Exposed 'Hole In Security'Andrew Rossig, 33, James Brady, 32, Kyle Hartwell, 29, and Marco Markovich, 27, were arraigned on charges of burglary, reckless endangerment and misdemeanor jumping from a structure, police said.