From Khao Sod:
According to witness statements and security footage, the British man, identified only as Nicholas, was seen running from Phibunsongkhram Bridge along Pracharat Sai 1 Road toward the 91 Karaoke establishment. When he attempted to enter the venue for unknown reasons, he was stopped by a 29-year-old bouncer named Boonchu.
This confrontation reportedly angered Nicholas, who shouted at the bouncer before backing away and continuing to yell as he headed toward Bang Pho intersection.
Shortly after, a second bouncer, 32-year-old Phurinat, emerged from the establishment and, together with Boonchu, followed Nicholas on a Yamaha Nuovo motorcycle...
It's common for people to get angry and verbally abusive when they're not allowed into a club. Professional bouncers take it easy, and the case is over when the people leave. But why did the two bouncers follow the victim? That's where the story starts to stink for me.