I've been following this rumor since very late Saturday night.
Only two news sources confirmed it. One was an Israeli newspaper and the other was RT (Russia Today). The latter happened to mention something else that was very interesting. Assad has been living on board a Russian warship cruising in the Mediterranean sea since last July. He flies to Damascus to make speeches from his palace there, from time to time, giving the appearance he is there all the time.
At the same time as the assassination news two surprising incidents took place. The Damascus State TV station was shut down, and the Brigade 38 air base was overrun by rebels. There they captures many heavy weapons = surface to air missiles, anti-tank weapons, etc...
It doesn't look like Syria will continue much longer with Assad at the head. What will take his place will be much worse for us, for Syrian women, and for Israel. The jihadists next target will be Lebanon. When that is overrun then Israel will be completely surrounded by Islamic fundamentalists nations, one of which is just a year or so away from possessing one or more atom bombs.
My suspicions are that Iran has already succeeded in mastering the procedures for making atomic bombs and are in the process of stockpiling sufficient numbers to be able to give some to other jihadists states so that all can attack Israel from different directions at the same time. From what I've read Israel has about 60 missile capable nuclear warheads but I don't know if they have enough launch facilities or capabilities to launch at Iraq, Syria, Lebanon, Egypt, Iran, Iraq, Pakistan and some other northern African Muslim states at the same time.
We will probably know sometime between now and the end of the year.