Gao Yang wasn't the only one holding a gun. He had a whole team behind him, and those hired by him truly saw Angel as an adversary in a firefight.
Nate was furious and shouted, "Are you all crazy? These people know too much. Have you thought about the consequences of not killing them?"
Gao Yang sneered and said, "Our boss has already said that his whereabouts are exposed. There's nothing to hide anymore. We've reached this point, do you think the Americans can still pursue us? So whether these doctors live or die makes no difference. Besides, they did save my brothers. The boss promised to let them go, so they will be let go. If you dare kill them, you'll be buried with them! Hmph, Foreign Intelligence Service, others may fear you, but I don't!"
Nate shouted in anger, "These people were kidnapped by our brothers in Kiev. If we let them go, our brothers there will be in danger. You can't be too selfish!"