Well, he brought the shells and the murder weapon with him.

贝壳和凶器都是他自己带来的
He must have brought gloves, too.

他肯定也随身带着手套
The only fingerprints they found belonged to the victim.

他们找到的唯一的指纹属于死者
Older, organized.

不是年轻人有条理
Yeah, except he left a footprint.

对除了他留下一个鞋印
That's something only an inexperienced unsub would do.

而这只有没经验的不明嫌犯才会犯
It's almost as though he planned this whole thing very carefully,

好像是尽管他计划得如此周详
but then reality was nothing like his imagination.

而事实和他的想象大相径庭
That throws him off balance and he makes a mistake.

这让他心理失衡并且犯了个错
But he is getting used to it.

但他已经开始习惯了
Each kill is more precise and well-executed.

每一次杀戮都更精准利落
The first killing, he had to saw to take the finger off.

第一次他得将死者手指锯下来