A citizen of the PRC, Shen Rei possessed one of the brightest minds despite an upbringing on farmlands. As a scientist for Zhonghua Industries, he made projects that aided the Chinese military, and Shen would eventually marry one of their secret service agents, Lian Xing. His dedication to work created a division among them, but Xing's defection ended further developments.
Over a decade later, Shen invented a self-sustaining energy mass with the intentions of solving third-world poverty. China wanted it for a bomb, and Shen defected with the device while trying to inform the French Prime Minister. Robert Cordell tried to secure him for the United States, and used al-Jamil to bring him across Pakistan. Ghassan al-Bitar chose to have Shen make bombs for terrorist attacks.
Xing, who had assisted Shen with his defection, became a prisoner Bitar used to control Shen. He built several X-Z-2 devices, but rigged one to fail and kill Bitar. The Agency attempted to secure Shen before Trinidad of the Chinese Secret Service could, but he shot himself to avoid having his creation become a weapon again.