Barisone, a member of the US dressage team at the 2008 Olympic Games in Beijing, allegedly shot Lauren Kanarek twice in the chest, according to reports.

Police said the 54-year-old had been charged with two counts of attempted murder after a woman had suffered "multiple gunshot wounds".

Barisone, a coach for the US three-day eventing team at London 2012, is also facing charges of two counts of possession of a weapon for an unlawful purpose.

According to the complaint filed in Washington Municipal Court, Kanarek, who had trained with Barisone for two years and lived at the property on a part-time basis with her fiance, said "Michael Barisone shot me" in her call to police.

Kanarek had posted a series of cryptic messages on Facebook in the days before the alleged incident, where she said she felt threatened and feared for her safety.

The 38-year-old did not mention Barisone by name.

"I'm being bullied by a 6’3" man," Kanarek wrote. 

"Bullied to the point I’m afraid. 

"It’s very complicated."

In a separate post on August 2, she added: "A certain known drunk has literally just informed me ‘sleep with one eye open.'"

Barisone, who has not yet appeared in court following his arrest, was named the Sportsman International Horseman of the Year in 2009,

He trains both dressage horses and competitors at his Hawthorne Hill farm site, located around 18 kilometres from the US equestrian team’s headquarters in Gladstone,

One of his students was Allison Brock, who claimed a bronze medal in the team dressage event at the 2016 Olympic Games in Rio de Janeiro.