Mahmoud Abbas, Palestinian President, has accused Syria of being unwilling to help solve the Lebanon crisis because of the Hariri investigation:

"It appears that Syria's main concern is the investigation into the murder of the Lebanese prime minister, Rafiq Hariri. If Syria could be assured that the investigation does not continue, there are indications that Syria would be willing to be helpful on many issues, not just the release of Israeli soldiers."

And he has also said that Hamas leaders in Damascus are the last obstacle to solving the Gaza crisis. He says Hamas leaders in Gaza are willing to release the Israeli soldier (Hamas haven't confirmed that), but Hamas leaders in Damascus aren't.

So, Abbas blames Damascus for the problems in Lebanon AND Gaza. That's quite an achievement. Israel, by his reckoning, is just defending itself.