He could be training.

他可能在训练
Spree killers often to dry runs

连续杀人狂开始杀戮之前
before they start their rampage.

通常都会先演练数次
Most spree killers have lost control by the time they begin.

多数连续杀人狂在开始犯案时就已失控
They're always male.

他们通常都是男性
And if they don't fall into the school shooter category

如果他们作案手法不是校园枪击的话
they're older

那他们年纪比较大
40s and 50s socially isolated.

40到50岁被社会孤立
The stressor's usually the dissolution

这种犯案的压力源通常都是
of their last social outlet.

他们之前的社会保障被撤销
George Hennard was inspired by James Huberty.

George Hennard是受到James Huberty的启发
Between the two of them

他们对两人间沿途的快餐店进行扫荡