Last December they hunted down and killed one of the gangsters.

去年12月他们追捕到其中一名歹徒并将其击毙。

《柯林斯英汉双解大词典》

At last he was hunted down and killed by hanging.

最后，他还是遭到追捕，被处以绞刑。

youdao

I'm sure he will be hunted down in less than a week.

我敢保证他一定会在一个星期内被捉拿归案。

youdao

"When you consider the situation of Bashar al-Assad, he himself is hunted down by a tribunal, now sitting in the Hague, investigating the murder of former Lebanese Prime Minister Rafik Hariri.

VOA: standard.2009.03.18

And they hunted down and killed a man known as Dulmantin, who had long been on Indonesia's most-wanted list, suspected of being involved in a 2002 attack on the island of Bali.

VOA: standard.2010.03.24

Among other things,the U.S.military has been distributing leaflets in the area where Bergdahl was captured, urging residents to help find him, and threatening that if his captors do not release him unharmed they will be hunted down.

VOA: standard.2009.07.20

Investigators spoke to prisoners and hunted down the likely ingredients of various batches of pruno.

FORBES: Prisoners Making Hooch: What Could Possibly Go Wrong?

Ms Dutt even said those who incited violence on social media should be hunted down and punished.

BBC: Social media and the India exodus

In 2005 the brothers hunted down some equity capital (Esmark has no debt).

FORBES: Magazine Article