The problem here is your assumptions with respect to crime statistics and relative safety. It is a fact that some places on Margarita are much more dangerous than others, and some places are safer than others.
Look at Ciudad Carton, Villa Rosa, Los Cocos, La Guardia, downtown Porlamar, etc., and you'll find plenty of crime to talk about. The vast majority of murders on this island take place in these locations, but the way you quote your statistic about murders it gives the impression that we're all in the same amount of danger. We're not. The fact that people get killed in Ciudad Carton is irrelevant to people living in Costa Azul.
Unfortunately, Playa Cardon has a reputation as one of the worst areas on the east coast. Three years ago I was warned repeatedly not to consider anything in that area, and your report of crime in that area is simply proof that I got good advice. I don't know why it's so bad, but at the very least it's got the problems that all the communities on the North East coast have: They are tourist areas for foreigners, and the bad guys know the people they're assaulting or robbing are probably going to have money because they're foreigners... and more important- they're going to get on a plane long before they could be asked to testify against the person who committed the crime.
The bad guys know it, and the police know it. So... why does it surprise you that the police aren't enthusiastic about finding someone? You're surprised that they didn't dust for prints??? What would they do with fingerprints? You think they have money to do things like investigate crimes???
Seriously- the cops don't have money.
Look at the municipality of Maneiro: For all security services their budget this year is BsF 210k per year. Got that? That's salaries, cars, equipment, everything. In comparison, the mayor's budget for entertainment is over BsF 300k per year, and the total budget is Bsf 92 Million per year. You're up in Arismendi, which has a lower budget, so what kind of budget do you think the police there have? This happens to be an election year, and the amount of money being spent on security is being discussed heatedly... I wouldn't be surprised to see spending on security increase to 10% of the entire budget within a year or so, but for now it's practically nothing.
[Any further along this line and this will degenerate into a political discussion. Suffice to say that a major source of problems is lack of funds for the police to do their jobs.]
OK? Police aren't paid very much, and they're already armed, and they know the system. Does it surprise you that some of them are robbing people? This is the environment you live in, so deal with it. I know many people who have never been robbed here, and I doubt if they ever will because they have an intrinsic understanding of how things work here and they are proactive about their security.
Keep in mind that the average foreigner comes in here with far, far more money than the entire family of most Venezuelans will ever see in this lifetime... and they don't have a clue about how rich they are compared to these people. They see Venezuelans living in nice places and driving nice cars and they think it's normal and that they can do the same and live here without being street smart. That's a major mistake. In this culture you're expected to be aware and on your guard, and unfortunately most foreigners aren't.
After foreigners get robbed or assaulted they start to hear all about the horrible crime problems here, and after that they tend to live in fear... but it doesn't have to be that way. The biggest problem is that most foreigners come here thinking that this place is some kind of Shangri-La. It isn't. It's just like many other places in the world, and while there are good areas and bad areas, one always has to be proactive about security.
I advise non Spanish-speaking clients to buy an apartment in a good building in a good area... and they often look at me and say "no, don't fancy a flat, I want a house." This is the kind of attitude I'm talking about- the refusal to listen to good advice. Of course, the real estate agents are going to tell them that the house is perfectly safe, nobody has problems here, there isn't any problem with crime, etc., but they just want your money. People listen to the things they want to hear.
I had one client who bought an apartment in an area not suitable for foreigners... over my objections. As far as he was concerned, it was just too good of a deal to let go... until he'd bought the place and spent enough time there to see what kind of neighborhood he'd got into. His wife refused to live there after getting a look at the area and hearing some of the stories. Did he listen to good advice after that? No, he came back and decided to buy a house. No Spanish at all- he can't function without someone to translate for him, but he has money and that can and will trump common sense.
Since I'm on a rant, I'm going to make a slight digression:
Almost every English-speaking foreigner I know living here on Margarita spends lots of time and energy trying to get the lowest rock-bottom price on anything and everything. The only thing they spend more time on is complaining about the extremely poor quality of work they finally wind up with. The ones who can't speak the language think everyone is trying to take advantage of them, even when it's understood that the price quoted is often negotiable. To them, it's the "gringo tax" and they aren't going to pay it! (The ones who learn the language tend to fit in and learning the system.)
The problem is that workmen who do above-average work charge above-average prices no matter what country they're in. They're good and they know it. But this must be never-never land. The expats here... they want to pay the low-ball quote from last year that they heard about in a bar one night... and as soon as they hear a reasonable quote for quality work they start screaming about the "gringo tax" and often they insult the tradesman in the discussions about price. When one refuses to pay for quality, one gets junk and problems.
Look at various Margarita discussion forums with the bitching about poor quality of work, the workmen don't show up on time, etc., etc., etc. I'd say that 80% of it is the fact that they're too tight to pay decent workmen the correct price to have the job done right. I've got tradesmen who show up when they say they will, do a proper job and clean up their mess when they're done... But for this kind of professional service you pay the going rate for good work. Do most of the foreigners do that? No- they buy the half-assed low-priced work.
Now- the reason I digressed:
Guess what: when it comes to security, refusing to pay for quality work is even MORE common. I cannot tell you how many times I've pointed out bars on windows and doors that were not adequately secured (meaning that the bars could be removed with a pry-bar and about 10 seconds of work) and was ignored. Spend money on a decent alarm system? Hell no! A nice whole-house system with cameras that post photos to the internet (you can look in on your house from anywhere in the world at any time) and have alarm functions that ring your cell phone or call a security company can be installed for about $5000.
Do the foreigners spend the money? No, not until after they get robbed.
Resper, I'm not picking on you, but you bought a house in the wrong place and you're paying the price. I'm willing to bet your house isn't very secure at all, and I suggest that you have the physical problems fixed, put in a decent security system and get a shotgun. The physical security measures slow them down, the alarm and surveillance system gives you some advance warning of what's happening, and the shotgun speaks the only language the malditos truly understand. Usually one shot is enough to spread the word that your home is not a good place to rob. If you kill someone INSIDE YOUR HOME you're not going to go to jail. You'll have to hire a lawyer and spend some money, but you won't go to jail.
Of course, you could always buy a nice apartment in a good building in Pampatar or Costa Azul, put a multi-lock portal on the door and not worry about home invasion or expensive security systems... Just a thought.
Is Margarita Island one of the most dangerous places in the world with one of the highest murder rates in the world? Absolutely not. I've been to many places, and I can tell you from experience that this island isn't bad at all. There are more than a few places in the UK that are as bad or worse than anything here on Margarita. You happen to be living in an area (El Cardon) with serious security problems. You should quit complaining and take responsibility for yourself and your partner. Be proactive about your personal security.
You could always move away from Margarita, but no matter where you move to you'll have to be proactive about your security. The 1950's are gone forever, and crime is getting worse *everywhere* in the world.
Seriously, though- claiming that this island has one of the highest murder rates in the world is silly. Really, really silly.