James Leith

Leith was a military commander who funded some of Crane's work. He asked Crane to create the Shadow Vortex, believing it to be a Soviet Weapon. He was exterminated by the Daleks after he fired his gun definitely. However, due to the War Doctor defeating Lara and erasing the Shadow Vortex, his death was undone with no memory of the Dalek attack whatsoever. (AUDIO: The Shadow Vortex)