nt of the shooting.

A search of online records in federal and state courts Sunday did not immediately show any cases related to Johnson. In Memphis and in Nashville, local court records showed he had a handful of minor traffic violations.

Mayor Paul Young called the shooting an  unfortunate incident  and said he was waiting to see the results of the TBI investigation before commenting further, according to a statement provided by spokesperson Penelope Huston.

Federal troops have been patrolling the city since October over the objections of Young, a Democrat. The troops are part of the Memphis Safe Task Force, convened by Trump and comprised of federal and local agencies.

The task force has led to more than 10,000 arrests, the U.S. Marshals Service reported in June.

There have been at least four officer-involved shootings tied to the task force, according to TBI data. Two of those shootings occurred in May and did not involve National Guard members discharging their weapons. The TBI also tied the task force to an October shooting, but did not specify which law enforcement agencies were involved.

The TBI and the National Guard did not respond to questions about whether Sunday's shooting was the first instance troops had fired their weapons since they were deployed to the city.

For years, Memphis, whose population exceeds 600,000, has dealt with high violent crime, including assaults, carjackings and homicides. Both Democratic and Republican officials have noted decreases last year in some crime categories, preceding the deployment and paralleling trends across U.S. cities.

The deployments cost nearly half a billion dollars through the end of December and are expected to cost taxpayers more than $1 billion this year, according to the nonpartisan Congressional Budget Office.

In April, the Tennessee Court of Appeals ruled that state and local Democratic officials lacked standing to block the deployment of federal troops in Memphis.

In May, four Memphis residents filed a pending federal lawsuit seeking to block the federal task force from applying a law that bars residents from approaching within 25 feet of law enforcement officers to record their activities.

The residents, represented by the American Civil Liberties Union, also alleged that task force members have engaged in a pattern of retaliating against them for filming their operations. They alleged they have been followed by law enforcement officers and that unmarked vehicles and individuals in tactical vests have showed up outside their homes after they observed the task force.