Terry A. Davis was a programmer who made TempleOS, an operating system he built by himself from start to finish. He created his own programming language called HolyC to work inside TempleOS. He believed strongly in his religion, and that was a big part of his life and work.

Terry had schizophrenia, which affected how he saw the world and how he worked on his projects. His mental health struggles made life very hard for him over the years.

In this clip, he is sitting at his Ubuntu laptop, writing and sending a letter to the CIA where he writes: "I am King Terry the Terrible. The CIA will be executed with an A10 gun, the first of god."

He passed away in 2018 after a tragic accident where he was hit by a train. His death was a sad end to a difficult life. Rest in peace.