[xJones]

At several occasion, brutal plainclothes men were captured by the demonstrators and were attached to trees.

Does that mean they are hanging them, or what?

[StriperSniper]

At several occasion, brutal plainclothes men were captured by the demonstrators and were attached to trees.

the regime's agents were saved from lynchage with the intervention of some of the protesters.

Not this time.

[don-o]

Does that mean they are hanging them, or what?

Neutralized; with extreme prejudice, I'd venture