The day after Christmas, a shooter terrorized the streets of a Chattanooga, Tenn., neighborhood. According to the local newspaper, the shooter was “wearing body armor” and “firing multiple shots out her window at people and cars.” One witness told the paper that the shooter was “holding a gun out of the window as if it were a cigarette.”

There’s more:

“Officers found two people who said they were at a stop sign when a woman pulled up in a dark-colored sedan and fired shots into their vehicle, hitting and disabling the radiator. Then more calls reported a woman pointing a firearm at people as she passed them in her car, and that she fired at another vehicle in the same area.”

When police officers came upon the shooter, the shooter led them on a chase. The shooter even pointed the gun at a police officer.

Surely this was not going to end well. We’ve all seen in recent months what came of people who did far less. Surely in this case officers would have been justified in using whatever force they saw fit. Right?

According to the paper, the shooter was “taken into custody without incident or injury.”

Who was this shooter anyway? Julia Shields, a 45-year-old white woman.

Take a moment and consider this. Take a long moment. It is a good thing that officers took her in “without incident or injury,” of course, but can we imagine that result being universally the case if a shooter looks different? Would this episode have ended this way if the shooter had been male, or black, or both?

It’s an unanswerable question, but nevertheless one that deserves pondering. Every case is different. Police officers are human beings making split-second decisions . often informed by fears . about when to use force and the degree of that force.

But that truth is also the trap. How and why are our fears constructed and activated? The American mind has been poisoned, from this country’s birth, against minority populations. People of color, particularly African-American men, have been caught up in a twister of macroaggressions and micro ones. No amount of ignoring can alleviate it; no amount of achieving can ameliorate it.

And in a few seconds, or fractions of a second, before the conscious mind can catch up to the racing heart, decisions are made that can’t be unmade. Dead is forever.

It’s hard to read stories like this and not believe that there is a double standard in the use of force by the police. Everyone needs to be treated as though his or her life matters. More suspected criminals need to be detained and tried in a court of law and not sentenced on the street to a rain of bullets.

It is no wonder that whites and blacks have such divergent views of treatment by the police. As The Washington Post noted recently about a poll it conducted with ABC News, only about two in 10 blacks “say they are confident that the police treat whites and blacks equally, whether or not they have committed a crime.” In contrast, six in 10 whites “have confidence that police treat both equally.”

Michael Brown was unarmed. (Some witnesses in Ferguson, Mo., say he had his hands up. Others say he charged an officer.)

Eric Garner was unarmed on a Staten Island street.

Tamir Rice was 12 years old, walking around a Cleveland park and holding a toy gun that uses nonlethal plastic pellets, but he didn’t shoot at anyone.

John Crawford was in an Ohio Walmart, holding, but not shooting, an air rifle he had picked up from a store shelf.

The police say Antonio Martin had a gun and pointed it at a police officer in Berkeley, Mo., but didn’t fire it.

And last Tuesday, the police say, a handgun was “revealed” during a New Jersey traffic stop of a car Jerame C. Reid was in.

But none had the privilege of being “arrested without incident or injury.” They were all black, all killed by police officers. Brown was shot through the head. Garner was grabbed around the neck in a chokehold, tossed to the ground and held there, even as he pleaded that he couldn’t breathe; it was all caught on video. Rice was shot within two seconds of the police officers’ arrival on the scene. Crawford, Martin and Reid were also cut down by police bullets.

In the cases that have been heard so far by grand juries, the grand juries have refused to indict the officers.

Maybe one could argue that in some of those cases the officers were within their rights to respond with lethal force. Maybe. But shouldn’t the use of force have equal application? Shouldn’t it be color- and gender-blind? Shouldn’t more people, in equal measures, be taken in and not taken out?

Why weren’t these black men, any of them, the recipients of the same use of force . or lack thereof . as Julia Shields?