Who is Scott Harmon from Airframe and what is their importance?

Scott Harmon is an employee of a video company Norton Aircraft often uses when analyzing video tape. Casey goes to Harmon in order to analysis a video tape found on board Flight 545. This tape is a personal video belonging to a couple on board the flight. During the incident, the video camera was recording and fell out of the owner's hand, landing in the cockpit. Casey asks Harmon to slow down the tape so that she can get a closer look at the cockpit. In the process of doing this, Harmon allows other people in his shop to look at the tape. The tape so disturbs one of the secretaries that she threatens to release it to the press. When Casey learns this, she uses the situation to allow the tape to come into a television producers hands in order to help her prove the innocence of Norton Aircraft.