Ummm ....
Murders happen everywhere. In my hometown in the U.S. there have been 4 murders just this year - fortunately, nobody has reason to murder ME, either here or in Jamaica.
Viruses occur everywhere .. especially when people travel on airplanes and take them along - it happens in St. Martin too. One time I went to Jamaica with a cold, and I came back, all better!!
I've been to St. Martin/St Maarten, beautiful island (not as beautiful as Jamaica though) ... Drugs & booze are prevalent in SM too - but the people are not as friendly or genuine. One need not partake in drugs or booze if they choose not.
The food I had in St. Martin was 'okay' (save a little French Bistro on the St. Martin side, where the pastries were VERY good) .... BUT, the food in Jamaica is PHENOMENAL!!! If there was no other reason to go to Jamaica, I would be going back JUST for the food. SERIOUSLY, sometimes I look for flights just for a weekend trip to Jamaica, just to fill that hankering for Jamaican cuisine that I have found no other place in the world!!! Gimme ackee & saltfish, roast yam, callilou, saur sop, naseberry, jerk chicken from Scotchies, oxtail soup w/ dumplings, crabcakes, festival, patties, curry goat from 3 Dives .... gimme, gimme, gimme, please oh please .... nothing beats Jamaican cuisine ... with or without the munchies