Guo Wanjun, male, born in 1942, graduated from the Department of Physics at Nankai University, and later became a missile technology expert who participated in the design of a certain type of strategic missile. Guo Wanjun got to know Wo Weihan because they were relatives by marriage. In the early 1990s, at a distant relative's wedding which Wo Weihan happened to return to China to attend, the two thus became acquainted. Wo Weihan originally...