Article continues below advertisementFormer mayor of New York City Rudy Giuliani arrived at Ground Zero's annual 9/11 memorial on Thursday, September 11, for the 24th anniversary of the terrorist attack that claimed the lives of approximately 3,000 men and women.Giuliani joined the crowd as he sat in a wheelchair with a brace on his upper body in his first public appearance after fracturing his vertebrae in a recent car crash. For the majority of the ceremony, he sat in a white chair to hear family members of the perished recall the names of their loved ones.