According to the BBC, Syria will soon name who was behind the killing of terrorist Imad Mughniyeah. I'll give it 100 to 1 odds that it was the evil, bloodthirsty Joooooooooos. From BBC:

Syria has said it will soon present "irrefutable" proof of who was behind the killing of Hezbollah commander Imad Mughniyeh in the capital, Damascus.
Foreign Minister Walid al-Moualem would not discuss the ongoing investigation, but insisted the world would "soon hear the results of this mighty effort".

Meanwhile, Iranian TV has broadcast a video reportedly of Tuesday's bombing.

On Thursday, Hezbollah leader Hassan Nasrallah blamed Israel for the blast and warned it was ready for "open war".

Israel has rejected the claims, but nonetheless has put its embassies around the world on high alert and boosted troop deployments on the Lebanese border.