Corvin is a videographer with the Los Angeles County District Attorney's office.
In September of 2006, he attended the recovery of Marie Gesto's body from Beachwood Canyon. Immediately after Raynard Waits escapes, Corvin puts the cassette in a pocket of his cargo pants. He later appears to be under pressure to get rid of the video because he told investigators that he lost the cassette during the chaos of Waits's escape. Under pressure from Harry Bosch, Corvin "finds" the cassette in his pants, but the version that is delivered to the police has been edited. It is not clear whether Corvin or someone else did the editing.