A Chinese PhD student convicted of drugging and raping 10 women in London and China is feared to have targeted more than 50 more potential victims.Zhenhao Zou, 28, was convicted of the harrowing attacks involving two women who have been identified and another eight who have yet to be traced.He filmed nine of the attacks as "souvenirs", and kept a trophy box of women's belongings, jurors in his trial at Inner London Crown Court were told.

A Chinese PhD student convicted of drugging and raping 10 women in London and China is feared to have targeted more than 50 more potential victims.Zhenhao Zou, 28, was convicted of the harrowing attacks involving two women who have been identified and another eight who have yet to be traced.He filmed nine of the attacks as "souvenirs", and kept a trophy box of women's belongings, jurors in his trial at Inner London Crown Court were told.