I WATCHED A VIDEO OF THE US CHESS CHAMPIONSHIPS

The end of the game Yoo - Caruana.

The descriptions of the end of this game in the chess press are exaggerated and biased.

Yoo lost the game but did not act more aggressively than Carlsen did as a world champion.

Yoo stopped the clock and squeezed Caruana's hand. He put the chess pieces back in their original position.

If I understood correctly, he crumpled up one of the game's protocols and signed the other.

He stuffed the protocol he had crumpled up to remain with him into his pocket.

He then left the chessboard, calm but visibly upset.

This is where the video ends.

It is alleged that he left the tournament hall and punched a female photographer standing in the corridor in the back.

It is claimed that there is a video of this, but it is not shown. The reason remains unclear, raising suspicions.

As what happened behind the table has been exaggerated, what happened in the corridor may also have been exaggerated.

Theoretically, he could simply have run into someone or something.

In the absence of hard evidence, such as videos, etc., he could sue various chess players and chess officials for criminal defamation.

Post Scriptum

The news is that the grandmaster Christopher Yoo's father has publicly apologised for his son's behaviour. 

However, while it is evidence, it is also not direct evidence. Note also that the emergence of new evidence is consistent with what I wrote above.

Regarding one attack directed at me on CHESSCom, note that this new evidence was not included in the two articles I referred to (one on CHESSCom and the other on Chessbase). This new, indirect evidence has been published in a fresh article.