[crazyhorse691]

My understanding is that the officer that shot the suspect was the closer of the officers and had the pick up truck as a backstop and the officer farther away used the stun gun because he was 90 degrees from the confrontation and had no backstop. Trained that way so no shots go awry and strike innocents.

[dragnet2]

The cop on the left shot the suspect because the suspect quickly raised both arm in a shooting stance and engaged him. And it was the cop on the left who the suspect directed his shooting/pointing stance at. That's why the cop on the left engaged and shot him.