This is a relatively new campaign on social media asking people to turn in guns. They get $150,000 in return, just over $1,000 US. Authorities say it is working….
$150,000 for a gun
Jamaican Journal
I am a writer, reporter and photographer in beautiful Kingston, Jamaica.
Jamaican Journal 
Wow, I must have missed this. I haven’t seen it at all on social media… This has been tried before but might work to some extent.