It's the perfect location.

这是绝佳地点
He could have walked in and out as a worker.

他可以装作工人出入
And he carried his weapon in a toolbox or a supply container.

他把武器装在工具箱或是供给容器中
Other workers would have seen him.

其他工人本可以看见他
Except it was 12:27 and they would he been on their lunch break.

不过那时是12点27分他们出去吃中饭了
Which means he scoped out this location beforehand.

这就是说他提前选定了这地方
Hey, Rossi, what's up?

罗西什么事
The analysis is back on the bullets found in the plaza.

广场发现的子弹的分析到了
The lands and grooves tell us

根据对凸面和凹槽的分析
they were fired from a .308 Nemesis.

子弹是从点308口径的复仇者中射出
It's a semi-automatic rifle.

这是一种半自动的步枪
Same type of weapon used in the murder

和三个月前德克萨斯州