he's hunting there, too.

也在那杀人
So this is where we need to redouble our efforts.

因此我们对这些地方加倍注意
Go building to building, door to door.

挨家挨户搜索
This guy's a fly on the wall.

此人无孔不入
He's able to learn secrets without anyone realizing he's there.

他可以在无人察觉的情况下知晓他人的秘密
He'll have a job that involves very little social interaction,

他的工作基本不需要与人接触
but it puts him in a position

但使他能够
where he can observe others unnoticed.

在无人察觉的情况下观察他人
So we should look at service workers,

应该重点注意服务业人员
groundskeepers,

园丁
anyone paid to be invisible.

那些不起眼的职业
And we need to move quickly.

我们要迅速行动