我不会剧透他到底最后被逮捕了没有，不过这本小说的故事设定时期是在20 世纪70 年代早期，这就让嫌犯无法像如今可以通过DNA 分析快速断案那样被轻易抓获。

I won't reveal whether he's caught, but setting the novel in the early 1970's does avoid the necessity of dealing with what one suspects would be a quick resolution in the age of DNA analysis.

youdao