The contractors of the Old University Building used prisoners from Sing Sing to cut the marble. This hiring was the catalyst for the famous Stonecutter's Riot. The old University Building was also subject to several ghost stories. It was believed that the building was haunted by a young artist resident who had died in one of the building's turrets. The spirit was said to pace through the hallways and staircases. In 1880, the "San Francisco Chronicle" reported that "the structure has an evil repute with the servant girls of the neighborhood ... They have a notion that deep in subcellars lie corpses, skeletons and other dreadful things." The Triangle Shirtwaist Factory fire on March 25, 1911, took place in the Brown Building of Science (formerly the Asch Building) which today is part of the NYU campus. More than a hundred garment workers, most young women and girls, died or jumped to their deaths after a fire broke out whilst all exit doors were locked. The fire led to legislation requiring improved factory safety standards and helped spur the growth of the International Ladies' Garment Workers' Union.