Another thing i don't understand. What is the "evidence" against Syria

The vehicle used in the attack, a white Mitsubishi Canter stolen in Japan, was driven into Lebanon from Syria by a Syrian Army officer days before the assassination. It was concealed at the Hammana Syrian military base where it was loaded with 1,000 kg of explosives.

Intercepted telephone conversations give some measure of the mood among Syrians and their Lebanese allies as they plotted Hariri’s downfall and eventual removal.

“We are going to send him on a trip. Bye, bye Hariri,” said Mustafa Hamdan, the former head of Lebanon’s Presidential Guard, who was arrested earlier this year. Another, identified as “X” says: “May he (Hariri) rot in hell.”

Various witnesses report that Mr al-Assad threatened to “break Lebanon over Hariri’s head” in an angry encounter before the decision was taken to assassinate him. By far the most serious implications in the report are allegations by a former Syrian intelligence agent that General Assef Shawkat, the head of Syrian military intelligence and the President’s brother-in-law, and Colonel Maher al-Assad, the President’s brother and commander of the elite presidential guard brigade conspired directly in the assassination.
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The report alleges that a key suspect who was in contact with Lebanese and Syrian security officers accused of plotting the assassination called Mr Lahoud (President of Lebanon, ally of Syria)’s mobile telephone just seven minutes before the bomb attack that killed Mr Hariri.

http://www.timesonline.co.uk/article/0,,251-1837470,00.html