The four people investigated in one incident were victims, witnesses, rescuers and bystanders. They made the following statements during the investigation: [1] A:B is not an bystanders.[2] B:C is not a witness.[3] D:A is not a rescuer.[4] C: B is not an eyewitness. Further investigation revealed that their statements were false if they were about the victim and true if they were about someone else.
D is the victim.