U.S. Olympian Sakura Kokumai, Suspect Arrested In Racist Rant Incident

The man who screamed violent threats at U.S. Olympic karate athlete Sakura Kokumai earlier this month has been arrested, officials say.

... and law enforcement says the suspect was also involved in a violent attack on an elderly Asian-American couple over the weekend.

As we previously reported, 28-year-old Kokumai -- a 7-time USA National Champion -- was hanging out at a park in Orange, CA on April 1 when some guy began yelling at her for no apparent reason.

Kokumai smartly recorded the incident -- capturing the man calling her a "stupid b***h" and yelling, "I'll f**k you up."

At the end of his tirade, Kokumai -- who is Japanese-American -- says she heard the man scream out something about her being "Chinese" and "sashimi" ... which you can sort of hear in the video.

Now, the Orange Police Dept. says they have arrested the suspect -- 25-year-old Michael Orlando Vivona.

Unfortunately, cops say they busted Vivona on April 18 after he was suspected of assaulting an elderly couple at a park,

"The suspect punched a 79-year-old Korean American male and his 80-year-old Korean American wife in the face," cops say,

"The assault was unprovoked and caused both elderly victims to fall down.  Community members at the park surrounded the suspect until officers arrived."

Cops say Vivona was arrested for elder abuse and committing a hate crime.

Once they realized he's the same guy from the Kokumai incident, he "was also arrested for threatening a Japanese American on April 1, 2021 at the same location."