The perfect murder

[Weetabix]

Good thing for the world we're not Murder, Inc.

[Rich]

I would hunt as if my intended victim were a deer. I would study habits, then station myself where the victim would pass by, alone, and with favorable circumstances of terrain, neighbors, etc. I would use a medium power rifle (preferably with a non original barrel) and make the shot from 100 yards/meters or closer. After the shot, I would unass the area and dispose of the rifle (or the barrel if that is all that was needed) in a lake or river, or bury it.

This business of random killing really turns me off. I damn well need a good reason, so I will probably know the intended victim.

Do not buy the needed equipment any where near your home or near where you are going to use it.

Old Russian proverb; "Three can keep a secret if two of them are dead."

[Erik]

There's also Murphys law to consider. Even if you have the perfect plan, no connection to the victim of any kind, and leave no forensic evidence, there's always the chance that someone just happen to see you do it, and maybe even get you on tape.

One example:
A suspected serial killer was caught in Sweden a few years ago after murdering a young girl. She just disappeared without a trace. Nothing pointed at any person. The guy that did it was not a local, and was out driving in a borrowed/rented car, far away from where he lived. It was not planned, it was just a spur of the moment thing, he saw the girl on a bike and grabbed her. No one saw it happen.

So how did they find him?
A guy living by the road a few hundred yards from where the girls bike was found had bought a new camera, and went out testing it by the road. He took a few snapshots and went back inside. It just happened by pure chance that he got both the girl and the killers car on those photos. When the story broke, he realized he had the girl on a photo, and called the cops. The cops saw the car and traced the plate, which led directly to the killer.
I kid you not, that's actually what happened

[doc Russia]

Insulin would be easier

Always been a fan of the bolus of air.

Takes a LOT of air to do that. Air often gets into the bloodstream with IVs and never causes a problem. Even hada guy get a bolus of air into his vein that reached his heart (you could see it in his heart on CT scan), and he had zero problems. I think that you need to reach some very high threshold, and then it is probably quite lethal.

[Jericho941]

For urban areas:

Stab once in left kidney, calmly walk ten feet away and sit down on the nearest bench.

[spoiler]I don't think Ubisoft has a better understanding of human anatomy than Dr. Zoidberg[/spoiler]

[randy]

I once had a Homicide detective tell me that, barring conclusive physical evidence and/or credible witnesses:

If a suspect refused to talk to him during interrogation and/or demanded a lawyer right away, he almost never got a conviction.

If a suspect talked to him during interrogation and did not ask for a lawyer, he almost always got a conviction.

[Jered]

Actually it's even simpler than that.

You know how almost all murders are solved?

The person who committed the murder told someone he did it, or was going to do it, etc... etc... They provided a direct link between themselves and the crime; either explicitly, or by circumstance, with the elements of motive, means, and opportunity in place.

Committing a "perfect murder" is easy. If you have no known motive, the victim is not known to you or you are not known to an an associate of theirs, there are no witnesses, and no easily and uniquely identifiable traces, all you need to do is never talk about it to anyone. The murder will simply not be solved under those circumstances.

There are a nearly infinite was of meeting those conditions.

Here's about the simplest one. Buy a very common .357 magnum smith and wesson revolver in a private sale, at least a few months before, and nowhere near where the murder will take place... There is basically nothing distinctive about a generic S&W .357 revolver. Use light, semi-jacketed soft hollowpoint ammo at very high velocity. Shoot twice into hard bone (ensuring full deformation of the slugs).

At this point, there is no way the slugs, if recovered at all, will have useful ballistics data recoverable from them.

However, if you really want to ensure there is no possible connection, chop the gun up with torch, chopsaw, plasma cutter etc... And bury the pieces in soft, moist ground, in the middle of nowhere; or dump them in a deep lake, or fast moving river.

One thing I've wondered about is with the 9mm Luger, the .38 Special, the .357 Mag, or other cartridges of a similar diameter is whether or not ballistics can even tell them apart.

So isn't it possible to shoot someone with a .357 magnum revolver, and then toss a few pieces of 9mm brass from the range on the ground to further confuse the issue?

[McClarkus]

I once had a Homicide detective tell me that, barring conclusive physical evidence and/or credible witnesses:

If a suspect refused to talk to him during interrogation and/or demanded a lawyer right away, he almost never got a conviction.

If a suspect talked to him during interrogation and did not ask for a lawyer, he almost always got a conviction.

My personal experience as well.

[HTRN]

There's also simply using a high pressure blank to the back of the head - no bullet needed, the gas will turn a human brain into goo...

[Thomas]

There's also simply using a high pressure blank to the back of the head - no bullet needed, the gas will turn a human brain into goo...

Jon-Erik Hexum .44 magnum blank.....