He says he was robbed by 3 boys (17ish) in town, in broad daylight. They took his wallet and his cousin's phone. They really frightened him and told him if he reported it to police then next time they'd cut him.
This is a relatively small city and the gangs probably all know each other and look out for each other. I told DS I would have to report it to the police and he said, 'Have fun at my funeral then'.
What would you do?