The South Korean was in the American city for the Pan American Region President's Cup tournament, which concludes tomorrow after beginning on October 5.

On the evening of October 1, gunman Stephen Paddock opened fire on a crowded music festival, killing 58 people and wounding hundreds in what is being dubbed "the deadliest shooting incident in recent US history".

Accompanied by a high-level delegation that included WT secretary general Hoss Rafaty, Pan American Taekwondo Union President Ji-ho Choi, WT Council members Maria Borello, Inseon Kim, Juan Manuel Lopez Delgado and Anthony Ferguson and WT Referee Committee chairman Song-chul Kim, Choue laid a wreath on a lawn near the massacre site and observed a minute's silence.

A WT-branded card accompanying the wreath read, simply, "Family". 

Choue also left a personal message in a memorial book at the scene.

The book will later be reproduced and a copy given to all affected families.

The delegation was briefed on the details of the tragedy, and on preliminary plans for a memorial, by a local official from the Nevada city. 

"The worst of humanity bought out the best," said Choue, noting how passers-by assisted when the shooting was unfolding.

"We laid a wreath on behalf of taekwondo practitioners across the United States, across the region and across the world.

"The world taekwondo family extends its deepest condolences to all victims and to their family members, and joins them in their grieving."