After Su Xin was taken away by the police, Li Fengnian immediately received a distress call from her. Li Fengnian did not show up in person, but he sent a lawyer, who arrived at the Police Station as soon as possible.
The Lawyer initially wanted to bail out Su Xin, but the police claimed that Su Xin was charged with premeditated intentional murder, so she could not be bailed out.
Li Fengnian had tried to pull some strings to rescue Su Xin, but Li Chengyun had also sought help, and with the testimonies of Cao Mengfan and Meng Linyuan, and Su Xin's own admission that she had indeed killed Yu Tianxiang that year, there was no need for further investigation or retrial, and the verdict was directly pronounced.
Presumably, Li Fengnian also knew that no matter what, he couldn't save Su Xin, and later, he stopped seeking help.