This article first appeared on The Conversation. You can read it here.

As Ahmaud Arbery fell to the ground, the sound of the gunshot that took his life echoed loudly throughout his Georgia neighborhood.

I rewound the video of his killing. Each time I viewed it, I was drawn first to the young black jogger's seemingly carefree stride, which was halted by two white men in a white pickup truck.

Then I peered at Gregory McMichael, 64, and his son Trevor, 34, who confronted Arbery in their suburban community.

I knew that the McMichaels told authorities that they suspected Arbery of robbing a nearby home in the neighborhood. They were performing a citizen's arrest, they said.