aim for the head rather than the body

its not clear, but it seems as though the police shot the guy in the body, not in the head.

as far as i can tell, the guy was no threat given that he was lying on the ground and all, in which case the only possible threat was that he was wearing a bomb.

via xymphora, the other day, this evening standard article says:

"Marksmen will be told to aim for the head rather than the body.

This is because a shot to the head causes the muscles to go limp and could prevent the bomber detonating his device.

Shooting at the chest could set off an explosives-packed vest."