In the case of Zhang Yingying, the defense proposed 54 factors of mitigating crimes, emphasizing that criminals have mental illness.

On July 8, in the United States, Illinois, Zhang Yingying's trial entered the stage of sentencing, and both the prosecution and the defense first confronted the evidence submission. During the pre-trial pre-trial stage, the defense proposed 54 mitigating factors, including the murderer without a criminal record, mother alcoholism and mental illness, and stressed that the offender has been suffering from mental illness for a long time and has not been treated, saying that he has been working with mental illness for the rest of his life. struggle. The prosecution submitted seven videos from Zhang Yingying's family and friends, including Zhang Yingying singing fragments and family recollections.