Anther interesting view here:
https://www.youtube.com/embed/UYpZ2VA0c4I
It somewhat contradicts the official statement:
Sources of the Civil Guard have stressed that the incident occurred during a static display and on the ground to mark the patron of the body was on land that did not endanger the audience, who was away because the area was bounded and closed with a fence with chains.
I see they use the same training academy as the Greek Air Force!
https://www.youtube.com/embed/lv7T1OXWMwo
Can't work out how to use the Youtube imbed button!