K-Chek and Dirty.R from Hong Kong released a song called 菲國搶殺事件的對話823誰是真兇? in response to the recent hostage-taking of Hong Kong tourists in the Philippines by an ex-policeman who hijacked their tour bus.  8 out out the 21 Hong Kong tourists in the tour bus were shot dead.

Message from K-Chek:

Think about who is really the murder.
news will be easily forget.. but songs will listen to it again and again.
We want people this remember this incident.. so people can learn from mistake...
And the rest.. you can think about it yourself...

If you haven't seen it yet, here's the raw footage of the Philippine SWAT team storming the hijacked bus in an effort to rescue the Hong Kong tourists.  Make what you want from it.  This whole incident is still going under investigation.