Just so, why did Voq became Tyler?
Voq unsuccessfully attempted to murder Burnham before being detained by the Discovery crew. Later, surgery caused the two personalities to merge together, leaving the surviving personality, that of Tyler, guilt-ridden and ashamed.
Also Know, what happened to Voq? Ash/Voq was sent back to the Discovery, but the Starfleet doctors on board had no idea how to alleviate Ash/Voq's suffering. Finally, when the procedure was complete came the strongest indicator that Voq had indeed been deleted from Ash's mind: L'Rell performed the Klingon death ritual.
Also to know, what did Lrell do to Tyler?
In the first season alone, his character, tormented Lieutenant Ash Tyler, has suffered torture (and effectively, rape), been paralyzed by PTSD flashbacks, and had his body and mind overridden by a Klingon sleeper agent via an agonizing, obliterating “reassignment†surgery.
Did Ash Tyler exist?
Ash Tyler was a male Human Starfleet officer who lived during the mid-23rd century. Tyler owned a boat and a lake house near Lake Shasta in California, on Earth, and enjoyed water skiing when out on the water.