COSTELLO: It is the deadliest outbreak yet in Donetsk. A gun battle at an Eastern Ukrainian airport has left 40 dead and may just be the turning point in the government's fight against pro-Russian separatists. CNN's Nick Paton Walsh will tell us more. Hi, Nick.</s>NICK PATON WALSH, CNN SENIOR INTERNATIONAL CORRESPONDENT: Carol, what we know at this point is there are 40 dead from yesterday's clashes. Two civilians and we've seen undignified sad pile of militants at the local morgue here. Many doctors say with bullet wounds and wounds from heavy weaponry. I saw one dead civilian female with a large head injury. It's distressing scene for many in Donetsk. They demanded the Ukrainian army to leave. The majority of the dead we saw today come from two trucks. We also saw that were hit by heavy weaponry by the Ukrainians. Interesting developments where separatist have heard of a window opportunity for them to leave the city center between 1:00 and 4:00 that passed. It's now 5:00 local time. After that they say they have been told they may have key buildings struck by air strikes --</s>COSTELLO: All right, we lost Nick's transmission. You get the gist of that. Things are turning around in Ukraine. We'll have to wait to see if they turn around in Ukraine's favor or Russia's. Still to come in the NEWSROOM, Elliott Rodger's social media backlash. What it says about our culture.
Forty Killed In Ukraine Airport Gun Battle