同学你好，该知识点来自沪江网校《新概念英语1、2、3、4册连读【周年庆特惠班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学你好~
John went to see his bank manager who sent the remains to the Mutilated Ladies department who identified the remains and returned the money.
第一个who指的是his bank manager
第二个who指的是the Mutilated Ladies department
先行词往往是关系代词前面的那个名词。

祝同学学习进步~