There appears to be agreement on the basic facts: a Turkish F-4 violated Syrian airspace and the Syrian military shot it down over its territorial waters. Further, there is no dispute that the AKP-led Turkish government has for months offered sanctuary and armed the Syrian opposition forces in what amounts to a civil war in Syria between a hideous, brutal tyranny and an increasingly Islamist opposition. The Turkish leadership, even while accepting that its plane violated Syrian airspace, is growling about retaliation. The Syrian government has done its best to tamp down Turkish anger...
http://www.danielpipes.org/blog/2012/06/thoughts-on-the-syrian-downing-of-a-turkish