What happened to the man who was killed at the beginning of csi 1?

This is a series of murders, episode 1 in the first season, episode 8 in the first season and episode 13 in the second season. Finally, in the second season, the case was solved in episode 13, but the old G was too late. To be exact, the murderer knew that old G would come to him, and his interest was also old G. He guided CSI personnel step by step, and finally the murderer committed suicide after killing her mother. The murderer is a transsexual, with two identities.