Events around the Upstate marked the solemn 19th anniversary of the 9/11 terror attacks.Of the 2,977 victims killed in the Sept. 11 attacks, 412 were emergency workers in New York City who ran into the burning Twin Towers.People in Greenville paid tribute to those brave first responders with a memorial stair climb at Fluor Field. After a memorial ceremony, participants climbed at least 110 floors