That's a big change in crime scenes car versus house.

犯罪现场变化也很大从车内到被害人家中
Two radically different M.O.s

截然不同的作案方式
Not to mention he subdues two people.

更别提他一下得控制两人
That takes a lot of skill.

要技术高超才行
There's no indication of how he overwhelms them.

无任何迹象表明他制服死者的手段
There's no antemortem bruising. He doesn't use a blitz attack.

也没有临死前挣扎瘀伤他不是闪电战
Well he's got a 9-millimeter.

他手握9毫米手枪
He doesn't need to.

不需要闪电战
How about signs of forced entry to the car or the house?

车内或家中有无强行闯入的迹象
No. But Akron P.D. did find this.

没但亚克朗警方发现了这个
Handcuffs. So he restrains the men

手铐印这么说他把丈夫铐起来
and saves the real savaging for the wife.

再残忍地杀害对方的妻子