He is a high school chemistry teacher. If it were not for the evil intentions of the people, he would have been very prosperous when he was young.He was a lung cancer patient, although he never smoked.

He was a good husband and father who regarded his family as his life. In the end, his wife told him to get out with a knife, and his son hoped that he would die quickly.He is a murderer and he has zero tolerance for threats.

He is the poison master Heisenberg. The methamphetamine he makes is blue and has a purity of 99.1%.