The Latest on pool incident: Texas city where officer resigned once lauded in survey

The affluent Dallas suburb of McKinney is fast growing, its public schools are highly regarded and it's been ranked by one publication as America's best place to live.

But video that prompted a white McKinney police officer to resign amid scrutiny over how he treated a group of black teenagers at a pool party has raised concerns about race. And McKinney only three years ago settled lengthy litigation alleging racial segregation in its public housing.

Officer Eric Casebolt is seen on video forcing a teenage girl to the ground and pulling his firearm after two males rushed forward in apparent protest. He resigned Tuesday.

People who participated in a rally this week protesting the police response used McKinney's name in the same sentence as Baltimore and Ferguson, Missouri.