What about the lacerations?

身上的伤口呢
Could they have been defensive wounds?

是自卫伤吗
No, they were in a distinct pattern.

不像伤口纹路很明显
Quite deep and severe on the radius and ulna,

桡骨和尺骨上的伤口很深很重
but carefully placed so as not to cause death.

却划得很小心以免致命
There would be substantial bleeding from a wound like that?

这样的伤口会大量出血吧
Absolutely.

绝对会
Yet there was minimal blood at the crime scene.

但是犯罪现场的血迹很少
The victim suffered the lacerations and burning somewhere else

死者的外伤和烧伤都是在别处造成的
and was taken to the canyon to be killed.

然后再被带到峡谷中处死
But why not make it one-stop shopping?

但是为什么不一次就杀了她呢
Transporting her alive, even a short distance,

在她活着时转移她即便是很短的距离