Tevis Larsen
From Destinypedia, the Destiny wiki
Tevis was a sly Hunter who had the rare gift of calling out to the Void. He was a friend of Cayde-6, who described him as a "lying cheat". He was a Nightstalker, a Hunter who used the Void to quickly dispatch enemy forces.
Tevis was found dead in the Black Garden after he left his Ghost behind on the other side of a Warp Gate on Venus, killed by the Vex, where the player gains the Nightstalker Hunter Subclass from him in A Ranger Lost. Cadye-6 tasks the player to kill all of the Vex in vengeance.