the issue hired law firms, lobbyists, and business associates to promote their positions to city and state officials. A report by the Center City District said if both One Pennsylvania Plaza and the Cira Centre, another skyscraper in the KOZ controversy, were filled by corporations moving from other Center City office towers, the city could lose US$153 million by 2018. A report released by the group of building owners opposed to KOZ says the two buildings could cost the city almost US$91 million a year. In contrast, a report issued by a consulting company hired by Liberty Property Trust said that a KOZ designation for the skyscraper could generate US$27 million for the city. Critics of the KOZ designation also claimed that close relationships between Liberty Property Trust and Comcast and the Rendell administration were inappropriately influencing the governor's position on the issue. When Rendell was mayor of Philadelphia, David L. Cohen, a Comcast executive vice president, was Rendell's chief of staff, and William P. Hankowsky, Liberty Property Trust's chief executive, was director of Philadelphia's development agency. Rendell dismissed the claims, saying "Every building owner in town was a contributor to me." Chances the bill would be passed ended in November 2004 when House Republicans in the Pennsylvania General Assembly decided not to bring the bill to a vote. Later that year, Governor Rendell released US$30 million from the Redevelopment Assistance Budget to Liberty Property Trust. Through the state's Department of Economic and Community Development, Comcast received US$12.75 million that included a US$4-million opportunity grant, US$6.75 million in job-creation tax credits, and US$2 million in job training assistance. Despite the failure to gain KOZ status, the project received US$42.75 million in financial incentives from the state. Construction (2005–2008) The official groundbreaking ceremony was on March 31, 2005. The ceremony, which was held at night, featured a light show coordinated with a piece of music entitled "Elevation". The song was composed specifically for the event by Curtis Institute of Music graduate Steven Hackman and recorded by the Curtis Institute of Music Orchestra. The groundbreaking also featured Kodo, the Germantown High School drumline, and a ice sculpture of the Comcast Center. As the building was under construction, in March 2006, Liberty Property Trust ran into trouble with Philadelphia's Plumbers Union Local 690, which had issues with the building's waterless urinals. The waterless urinals were part of the plan to make the Comcast