"A British man was gunned down Tuesday after leaving a gym in a Thai beach resort by an assassin who fired a single shot into his victim's head before fleeing"

ST:

there was a crowd outside the gym that witnessed the killing and that the man's wife was baffled as to why he may have been targeted.

...

Pattaya boasts a large expat population and is notorious for its go-go bars and links with organised crime.