he had the same targeted lacerations to those arteries.

他那两处动脉也有同样针对性的伤口
The other stab wounds, they seem more random.

而其它刺伤似乎更杂乱无章
So the unsub knew the best way to kill them,

所以不明嫌犯知道杀死他们的最佳方法
but he stabbed them multiple times afterwards to express his rage.

但他之后又刺了很多刀以泄心中怒火
There's also something else that's unusual.

还有个奇怪的地方
These stab wounds have a curvature to them.

这些刺伤都是弯的
They weren't made with an ordinary straight blade.

肯定不是普通的直刀刺的
What sort of knife did he use?

那他用的是什么刀
Based on my measurements, they were curved,

根据我的测量应该是弯的
sort of like a half circle.

像是半圆
Like a mezzaluna.

就像半月弯刀
Does a mezzaluna look like this?

半月弯刀是长这个样吗