The unsub stalked Monica,

凶手跟踪莫妮卡
so he knew about the spare key under the mat.

他肯定知道垫子下面有备用钥匙
He had complete access.

他完全能进到房子里去
So why wait 7 years to circle back if that's the case?

如果是这样的话为什么等了七年再回来
The butterfly could symbolically represent

蝴蝶的含义可能不仅仅是一种转化
not just transformation but maturation of his erotic ideal.

也可能是他理想性爱的成熟体
Well, he started with easy targets.

他先对容易的目标下手
Children are much easier to abduct, manipulate, and control.

孩子很容易绑架和操控
Or he could be a preferential offender

也许他是个择优型性侵者
and a situational child molester, meaning adult woman have always

偶尔也选择孩子成年女人是他的首选
been his preference, but given the right circumstances

但在特定场合下
he'd offend against a child.

他也会侵犯孩童