Why do murders always dig only shallow graves?

How about unused/abandoned mine shafts, wells, and deep caves?

Then there’s Jeffery Dahmer who, apparently, ate some of the evidence although I’m not sure that was entirely a way to hide it as part of whatever sick defect he possessed.

Dahmer is an illustrative example of something, but not of stealthy body disposal. His neighbors all complained of the horrible smell BEFORE he was caught–including the guy who occasionally had a beer with him.

Yep, but as noted the opening in a pig isn’t very big and would limit any “splashing” that occurred (actually, it’s more like a steam explosion from what I’ve been told).

Hey, Dexter Morgan! I was wondering how you’ve been doing since leaving Miami! Sorry about your sister, though…

Actually, Dexter did bring up the drawbacks of that - in the series Dexter gets the title “Bay Harbor Butcher” after some divers discover his disposal site. After that, he switches to the Gulf Stream but in that case we’re talking about a very much OCD killer being very methodical. Who also owns a boat. And doesn’t seem to require sleep.

Not a heck of a lot that doesn’t either melt or burn in molten steel… But yeah, apparently it does cause a temperature drop. Modern steels often have some fairly precise chemistry and maybe a human body can throw those off, too.

Heiress Helen Brach was allegedly killed in the 1970’s on orders from organized crime and her body disposed of in an Indiana steel furnace. That should give you enough to google more details if you’re interested. Apparently there is evidence, but I’m not sure it would constitute legal proof, that that actually happened.

Obviously, he either needed to eat faster, get a bigger freezer, or throw out rotten meat quicker.

You might think that, but it’s actually fairly easy.

I won’t say anything more.

A phaser type 1 on full power

Which implies a really good way of getting rid of a body if you have a private pilot’s licence and a buddy, is to fly out over the middle of a forest and drop the body out the door. Of course it’s going to be slightly random, but as long as you live somewhere like Australia or the US where there are massive areas without much infrastructure, and the body lands in an area no hiker etc has any reason to go, the body might never be seen again.

Bodies can get pretty buoyant after a few days in the water. This case for example - a murdered woman was weighted down with 28kg (about 60lbs) of concrete and six days later was found floating on the surface of the lake (in my job at the time I had data on the lake-bed contours, depth, water flow direction and speed which I provided to the AFP so I had a chance to talk to some of the investigating officers).

Another factor if you go into remote areas or farmland is that the locals all seem to know what cars their neighbours drive and what ‘normal’ traffic in their areas is (ask my grandmother :smiley: ) - if something out of the ordinary happens or police start asking eventually someone will remember an unfamiliar car driving around.

Last year one of our mini donkeys died. We had to dig a grave, we dug one about six for deep in Florida sand. It took a couple of hours and it was exhausting.

I’m opting for renting a wood chipper if I ever kill someone. None of that nasty time-consuming digging and wood chipping is common enough no one will ever notice.

Nicky (Casino) [voice-over] A lot of holes in the desert, and a lot of problems are buried in those holes. But you gotta do it right. I mean, you gotta have the hole already dug before you show up with a package in the trunk. Otherwise, you’re talking about a half-hour to forty-five minutes worth of digging. And who knows who’s gonna come along in that time? Pretty soon, you gotta dig a few more holes. You could be there all fuckin’ night.

Just remember to thoroughly clean the “hamburger” out the chipper before you return it. If you don’t, someone might get suspicious and test whatever bits they find in it. As soon as the results come back as “human tissue” you’ve got some serious explaining to do.

I read that in Las Vegas, discoveries of human remains on construction sites were common during the boom years when property development on the fringes of the city was very busy. Allegedly, it came to point that some developers found the ensuing disruptions so costly that they occasionally decided to not call for the police.

Of course, whenever a murderer is diligent enough to dig a sufficiently deep grave for his victim, nobody ever learns about it.

Over the last couple of years we’ve had to bury a cat, chicken, and horse. The cat and the chicken were difficult burials digging into Pennsylvania clay and rock. The horse was easy ($200 for a backhoe, it took the guy just a bit over an hour).

Without the machine to tamp the dirt down, the deeper hole will fall in further…

think about it, it settles 10% say, thus the mound above a grave in the cemetery is about 10% of the depth…

So if the murderer digs a grave 36 inches down, it will only settle 4 inches.
If he digs it down 72 inches down, it settles twice as much, 8 inches, and then soon the grave can be seen as a hole in the ground.

Sometimes they notice.

Criminals broadly speaking represent a mirror of the society they are within; in other words there about the same percentage of dumb criminals as there are dumb people in a given area.

However there is a significant fraction of criminals who are well above average intelligence, and to a higher percentage than the general population. They become criminals because they know they are bright yet society does not grant them the superior position they feel they deserve, which causes resentment and grandiose schemes to enrich themselves.

Generally they are also either unlucky, debilitatingly poor (and thus either are less able to take advantage of higher education opportunities, or simply live somewhere where good job opportunities are scarce) or just plain lazy, but those are dangerous combinations with IQ’s of 120 and higher.

It’s also reasonably common that they also feel they won’t get caught. Some simply choose a “life of crime” because they feel they can do well at it.

Then they get caught. It does not necessarily follow that being smarter than those pursuing you means you always win.

Criminals are usually dumb fucks. Sure they might have some street smarts, but the " gentleman thief" or “criminal mastermind” is mostly fiction.

Exactly. Think Jimmy Hoffa.

No way. A type 1 phaser can’t even injure a horta. To vaporize a human body, better bring a type 2 set to level 16. But even that won’t destroy all the DNA residue.