They wouldn't directly take the two women to the scene, and the likelihood of a killing was still high, especially if someone was caught there.
Now, aside from the injured, everyone is celebrating, a perfect ending, which is good. They were just waiting for the ambulance to arrive and take these three to emergency. How many would survive was uncertain. If there were survivors, perhaps they could even dig out the people behind this. Their kidnapping target was too precise; there might still be someone hiding behind the scenes, at the very least someone involved in intelligence. Otherwise, they couldn't have possibly known that a model was actually a major corporation executive's daughter and demanded a ransom of five million dollars. This was just too precise.