Li, frustrated by the fact that doctors had dismissed his fears for his children while failing to cure him, sent his first bomb on February 18, 1999, disguised as a fruit box, to the house of Dr. Xu, teacher of the University of Medicine of
Sichuan. On October 6, 1999, he sent a bomb to Dr. Chen; it exploded and killed Chen and two others at a clinic in
Guangzhou. Two others were wounded. In the third explosion on October 24, 1999, he sent a bomb to Dr. Wu, who told Li that the disease could not be transmitted by everyday contact with his children. Two butlers were killed in the explosion, while Wu and 13 other people were wounded. ==Arrest==