Residents said local gang leaders had cashed in on the violence to seize valuable land.

居民们说地方帮会头目曾经从暴力掠取宝贵土地中牟利。

《柯林斯英汉双解大词典》

In City of God, drug gang leaders have been arrested, killed or fled, but some of their family members remain, waiting for the police to leave.

在上帝城，毒品团伙的头领们已经被逮捕，杀害或者流放，但是他们的家庭成员们有一些仍然留在这儿，等待警察离开。

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Drug gang leaders became judge and jury.

贩毒团伙的头领们成为了法官还有陪审团。

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"There are drug-traffickers and gang leaders from the Mara Salvatrucha (street gang) there, " Mr Lopez said.

BBC: Guatemala prison director 'killed by prison gang'

In an age of mobile telephones, gang leaders can remote-control hitmen from anywhere they like.

CNN: TRAPPED IN THE BIG SQUEEZE

Gangs, and the willingness to follow gang leaders blindly by members is evident throughout Thailand.

BBC: NEWS | Have Your Say | Thailand gun battles: Your views