He was a high-functioning psychopath,

他是个极善社交的精神病患者
straight-A student, varsity wrestler, lots of girlfriends.

优等生校队摔跤手女友成群
With an above-average intelligence

他的智商高于常人
that made him incredibly resourceful.

所以花招很多
His explosive of choice was semtex.

他选择塑料炸弹
It's found at demolition sites, but it's held under lock and key.

能在爆破地点找到但通常都被妥善保管
Which made us consider the possibility of a partner.

所以我们考虑过可能有同伙
Never found one.

但没找到
Slade was too much of a narcissist to share credit.

斯雷德太自恋了不愿有同伙抢风头
But he was also an impulsive teen,

但他也是个冲动的青少年
which is what bothers me about this unsub.

我担心这名凶手也有这一特点
His sense of control?

他的控制欲吗