To put it simply, many friends have criticized why Logan finally took out the bullet from the body instead of the forensic doctor at the beginning? One of the details of this is that the old policeman asked the doctor how the suspect was doing. The doctor said that the bullet was embedded in the heart and could not move. It had to wait until it stabilized. That is to say, everyone knew that the suspect had not taken the bullet out, but it was impossible to take it out due to the condition at the time. When the suspect is found dead in the jigsaw coffin, the bullet can be taken directly from the heart.
There are indeed many bugs in this film, but I don't think there is anything wrong with the issue of taking bullets.
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