Problems between Dr Vajinder Pal Toor and Dr Lishang Wang started early 2008. Wang alleged in the lawsuit that Toor unfairly targeted him. A confrontation between Toor and Wang occurred on May 15, 2008, when Wang was accused of leaving his post in the intensive care unit and being incommunicado for several hours.
An Indian-origin doctor at the Yale School of Medicine was shot dead by a Chinese colleague, who also tried to kill victim's pregnant wife, the police said.