葛柏案开审以来，主审法官杨铁梁接连收到匿名恐吓信。
Presiding over the case , judge Ti-liang Yang received a chain of anonymous threatening letters .
杨铁梁说自己审案时会很投入，有时日日夜夜都会想著案情。
Mr Yang said he would always throw himself into the cases during a trial , reflecting on every detail day and night .
杨铁梁