I'm not good at this, but. It looks like A minor with some notes that don't really fit in, something that he does a lot, basically because he plays with his ear rather than theory, he knows really little about that. But there might be some other scale, then I don't know. I just had a quick look at the first few notes, so I might be mistaken.
Oh ok, thanks
A little spooky, was jamming around with modern blues theme's backing track, and the scale Dejan was using was A minor.