Could Ukraine Bus Casualties Have Been Killed in a Mine Detonation?

The GRAD missile version was disputable from the very beginning, there was no hole, the windscreen was on its place, even the paint on bus body remained untouched.

Simplifying the investigation is this image from the scene that shows a Ukrainian soldier with what appears to be a claymore mine. Claymore mines are direction anti-personnel mines that can be triggered remotely and fire steel balls at high speed.

Watch the video to answer all the questions.