From Chronological of Horse today (https://www.chronofhorse.com/article/kanarek-conscious-communicating-barisone-scheduled-court) “The police report also included information from an interview with Goodwin after the shooting. He said he and Kanarek were at the residence when Barisone arrived. After a brief conversation between Kanarek and Barisone outside, Goodwin heard gunshots and saw that Kanarek had been wounded. He said Barisone then aimed at him but missed, and he attempted to disarm and subdue Barisone as he waited for help.”
Poorly written but shares same information, this is from KAN36NEWS (https://www.kxan36news.com/olympic-rider-low-shoots-neighbor-view) “There was only a very brief verbal altercation. Then Barisone whipped out the gun. He came in and knew exactly what he would do,” said a police spokesman.