Who is Dr. Lyle Ammon from Caliban Cove and what is their importance?

Dr. Lyle Ammon was the last researcher at Caliban Cove that Dr. Griffith killed. He managed to send information to Mr. Trent along with a request for help. He also hid his keycard to the lighthouse in the blue series test, allowing David and his team to find it and gain access to the lab.