A friendly beer shared with a mysterious stranger has led to the arrest of a high-profile murder suspect in Hong Kong.
The suspect had gone on the run after he allegedly slashed a taxi driver to death, in a case that gripped the city.
Police put out an appeal for information with pictures of his face, and warned the public that he was an "extremely dangerous person".
Violent killings are rare in Hong Kong, which has a low crime rate.
Local media outlets reported that he had previously expressed a desire to imitate US-style mass shootings, had briefly stayed at a psychiatric facility, and appeared to believe in the "gang stalking" conspiracy theory.
"Gang stalking" sufferers believe they are "being followed, stalked, and harassed by a large number of people, often numbering in the thousands", according to one study released in March.
