The killer did this.

凶手干的
Think it was part of the struggle?

不觉得是打斗造成的吗
Too deliberate.

太刻意了
It's a latitudinal co-ordinate.

这是个纬度坐标
If you mark the angle of the sun at its highest point of the day,

标出一天中太阳最高点的角度
it shows you how far you are from the equator.

就能显示出与赤道的距离
It's useless without longitude.

没有经度也没用
Even in the army they teach basic navigation.

陆军也要学习基本的航海知识
I went to West Point.

我上过西点
I was expelled, don't worry.

不过被开除了别担心
Fields, look there.

菲尔兹看那里
Get me a scalpel.

给我一个解剖刀