Paul Murdoch, a L.A.-based architect who began his career at a Center City architecture firm, recently completed Tower of Voices, a new memorial to honor those who perished aboard United Airlines Flight 93. Located in the new national park located in Somerset County where United Flight 93 crashed on September 11, 2001, it is intended to be a living memorial in sound to remember the 40 people who died.

On September 8, three days before the 20th anniversary of 9/11, Murdoch joins Inquirer digital editor Tommy Rowan to discuss Murdoch’s vision for the memorial and the deeper significance of the work.