The technology is not perfect and it is difficult to preserve evidence. At that time, the development of science and technology was not perfect, which led to the insufficient development of investigation technology, so we faced great difficulties in preserving evidence. At that time, the streets and alleys were not covered with cameras as they are now, and it was impossible to know where the suspect came from to the place where the body was dumped, where the body was dumped, and even when the body was dumped. Investigation is extremely difficult without the aid of technology. It is also difficult for investigators to preserve evidence. At that time, it was impossible to even detect DNA, let alone preserve the DNA and the body.
The murderer has cruel methods of committing crimes and has strong anti-reconnaissance capabilities. The details of the case at the time were that after Diao was dismembered, the murderer used a bag to throw the body parts into the trash can. The news at that time described that the body was cut perfectly, which shows that the dismemberment killer had a very good psychological quality. Faced with such a delicate and terrifying dismemberment process, he was able to calmly carry out the perfect dismemberment and choose to dump the body in the busy city in the dead of night without leaving any evidence or clues, which is enough to show that the murderer has strong anti-reconnaissance capabilities. Disappear by itself in the downtown area.
It has been so many years since the NTU Dismemberment Case, and many people on the Internet have speculated for many years, but speculation is just speculation after all. After all these years, the killer may be dead. This incident took the life of young Diao Aiqing and became a lifelong pain for Diao Aiqing's family. We still hope that the brutal murderer will be brought to justice as soon as possible.