She's got bruising to the neck which is consistent with manual strangulation.

她颈部有擦伤，应该是扼杀留下的痕迹。

youdao

Through medicolegal expertise, the Peng some system was resulted in"mechanical property asphyxia"'s causing death by the others manual strangulation while was living.

经法医鉴定，彭某系生前被他人扼颈造成“机械性窒息”致死。

youdao

The doctor added that there had been no signs of fingertip marks at the sides of the neck, which were often seen in "manual strangulation" using the hands.

BBC: Murder trial told 'choke hold' led to doctor's death