This is not like a crime that happens in most neighborhoods, the possible witness are mostly trancient in Aruba since most will be travelers.
Great point. An other problem is finding reliable witnesses--people whose observation & judgement abilities weren't compromised by party--to events that happen after the bars shut down for the night.
THat's an excellent point, it affects what both people are able to comprehend when they're witnessing it as well as what they can then remember in detail later.