It appears that the executed lady was holding a knife and a man was not too far from her. The Female cop shot her without trying to figure out what was going on. Give a cop a gun and everyone is a target. Training and accountability for cops is almost nonexistent.
What video were you watching? The big blond male cop, Sean Grayson, shot her. He told his partner later that he wasn’t going to take a pot of boiling water in the face (news article, not linked video.)
There was no knife in her hand. Grayson was not afraid of a knife but the water. Grayson’s partner was not afraid of her at all, his camera shows him looking away as Grayson talks to her while she is in the kitchen.
There was no man near her, just two cops.
Female cop?
Nearly all the video is from Grayson’s partner. The broadcast cuts to Grayson’s video as he goes round the counter towards Sonya Massey, his camera was not on until then.
It is not the training.
It is what the officers do after the training.
One can receive the best training in the world.
But if one does not utilize it the training does no good.