How is it no one heard or saw anything?

怎么会没有人目击或听到什么呢
This killer was prepared.

这个凶手是有备而来
Highly organized. This was premeditated.

很有条理这是有预谋的
He kept his emotions contained.

他控制住了自己的情绪
Pretty hard to do for the typical workplace killer

对一个心理异常或是因不公正待遇
who's mentally ill or outraged about some perceived injustice.

而愤怒的办公室杀手来说这可不容易做到
The high body count indicates a hell of a lot of rage.

如此多的死者表明他极度愤怒
One employee, John Owen, was MIA.

一名叫约翰·欧文的员工失踪了
Local P.D. haven't been able to locate him yet.

当地警方还没有找到他
Any unhappy clients?

会不会是不满的客户
Or a domestic situation among the employees?

或是员工之间的内部问题
Don't know, but your friendly neighborhood genius girl

不清楚但你那亲切天才的邻家女孩