draco is pointing his wand at Dumbledore about to kill him because the death eaters are gonna make him kill Dumbledore he doesn't want to do it he's not evil but he's forced to do it and he's crying keeping the wand pointed at dumbledore

Dumbledore: "draco you don't want to do this"

Draco: "don't you understand? I have to kill you... or he will kill me"

Bellatrix: "do it draco"

draco can't but he keeps his wand at Dumbledore then Snape grabs his wand pushing draco and you see this