any of those who break the law will come to a bad end in time.为什么选who

who 引导的定语从句,WHO 代的是从句中的主语,所以要用who而不是whom
看缺什么成分,缺主语用Who缺宾语用whom
1.who指人,在从句中做主语
(1) The boys who are playing football are from Class One.
(2) Yesterday I helped an old man who lost his way.
2. whom指人,在定语从句中充当宾语,常可省略.
(1) Mr. Liu is the person (whom) you talked about on the bus.
(2) Mr. Ling is just the boy whom I want to see.
注意：关系代词whom在口语和非正式语体中常用who代替,可省略.