Lebanese plain clothes policemen inspect the remains of a car after the explosion [REUTERS]

Yet another killing in Lebanon.

MP Waleed Eido, a staunch critic of the pro-Syrian opposition, was killed on Wednesday along with his son and many others.

His assassination occurred just three days after the international tribunal to try suspects in the assassination of Rafiq al-Hariri, a former Lebanese prime minister, came into force.

So, what message is sent by these killings? 

How will this affect the already volatile situation in Lebanon?

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