你知道吗？你说话的方式犹如指纹般独一无二，对调查人员破案也很有帮助。而在真实的案件中，语言学家通过对不法分子的信件和宣言的深入分析，就能锁定嫌疑人。
Have you seen this man?
Probably.
This is one of the most famous police sketches ever made.
And it's supposed to be this guy, Ted Kaczynski, a.k.a. the Unabomber, an American terrorist who mailed homemade explosives across the country for almost 20 years.
Obviously, the sketch artist didn't have much to work with.
And the Unabomber left no fingerprints or DNA. So how was he finally caught?
Linguistics.
I'm Erica Brozovsky, Ph.D., and this is Otherwords.
When the Unabomber sent a 35,000 word manifesto to the newspapers, the FBI had forensic linguists James Fitzgerald and Roger Shuy examine it for language clues.
They found some outdated terminologies like "broad" and "chick" that weren't likely to come from a woman or a young person.
