Manuel Lago is an old and close friend of Barry Allen. They knew each other since before Barry became The Flash. Manuel was always getting in trouble and bringing Barry along for the ride. This usually ends with Manuel and Barry running from whoever they angered. Manuel joined the CIA after his father was killed in an air-liner highjacking and asked Barry to join with him, though Barry refused. The CIA trained him to be an elite agent and he took part in an experimental project to give him regenerative powers after he lost his hand. With these powers he became one of the best but he was only biding his time, using the CIA to gain connections and intelligence on the organization that killed his father and he went rogue. The organization was called Basilisk and he began eliminating them one