Cohen wants you to photograph the corpse of Fitzpatrick, the dead pianist.
Cross the fallen light support onto the stage and photograph the corpse of Kyle Fitzpatrick. Cohen wants you to now take this photo to the Atrium and place it on his masterpiece. Before you exit the theatre, be sure to search the balcony seating areas for items, especially those on the left side of the stage (the gates are now open). The final door leading to the corner balcony section is locked, but you can run and leap from the railing in the adjacent booth to reach the Alarm Expert tonic that’s located there. Take the elevator back to the lower level of the theatre and return to the Atrium.