What crime is hiring someone to kill you and then killing the hitman? Suppose that yesterday I was suicidal and decided to hire a hitman on the internet to kill me. Today, when they turn up, I have changed my mind and defend myself by killing the hitman. What crime(s) have I committed? This is completely hypothetical, so any jurisdiction would be interesting.
It appears you want to go for a defense strategy based on a self-defense argument. This won't work in many jurisdictions, because self-defense usually doesn't apply when you intentionally caused a situation where you knew you would have to harm someone in self-defense. Similar case: Bob regularly mugs old women in the park by threatening them with a gun. Charlie finds out and wants to stop him. But instead of reporting it to the police, he wants to take care of this himself. Charlie get a gun, dresses up as an old woman and waits in the park. When Bob shows up and tries to mug Charlie, Charlie shoots first. Well, anyone else who would have found themselves in a park threatened by Bob with a deadly weapon might have had a self-defense argument. But Charlie knew that by dressing up as an old woman, he would provoke Bob to attempt to mug him. This of course doesn't exonerate Bob. But Charlie actively caused the situation which would give him the opportunity to kill Bob &quot;in self defense&quot;. Charlie even made a complex plan to arrange this situation and put serious effort into setting it in motion. It's premeditated murder. Your situation is basically the same. You caused someone to make an attempt at your life, and then killed them to &quot;defend yourself&quot;. And you had plenty of other options: There are lots of ways to end your life without requiring the help of a hitman. By getting them involved, you incited them to commit murder (killing someone who wants to die is still murder under most circumstances). By hiring the hitman, you created two possible options: Either you kill the hitman, or the hitman kills you and they would be guilty of murder. Both are the direct consequences of your actions. You could have tried to cancel the hit when you changed your mind (if you tried and failed, that might give you a slightly better legal argument) You could have called the police and ask them for protection. Further, when you hired the hitman you committed a crime: incitement to commit murder. The fact that you were also the victim of that crime doesn't really matter. It also doesn't matter that you wanted to die: Assisted suicide is only permitted in very few jurisdictions, and those only allow it if performed by medical professionals under very narrow circumstances. Those circumstances would certainly not have applied, so the hitman would have been guilty of murder if he had succeeded (he is at least guilty of attempted murder, but you can't put a dead person on trial), so you would too. When you commit a crime and cause someone to die in the process, then that falls under the felony murder rule in many jurisdictions. You will likely be convicted of manslaughter or murder of the hitman, depending on when you decided to kill the hitman before they kill you. When you can convince the court that you did not premeditate to kill the hitman but only panicked in the last minute, and no felony murder rule applies, then you might get away with manslaughter. You might also be found guilty of incitement of attempted murder (your own murder).
germany Someone inciting someone to commit a crime is to be punished as if he committed the crime himself in addition to the actual perpetrator. §26 StGB Murder is punished by lifelong imprisonment. §211 StGB The attempt of a crime is punishable by the same punishment as the execution of it, or with a reduced sentence. §23 StGB You can agree to your body being harmed by someone (like in a martial arts tourney), but that doesn't make it legal if the harming of the body is against &quot;Gute Sitten&quot; (~morals) §228 StGB This includes (attempted) murder. Conclusion Hiring a hitman is punished by lifelong imprisonment for inciting someone to attempt/commit the crime of murder. Failure in murdering someone makes it an attempt. If your incitement of the (attempted) murder can be proven, it doesn't matter if the hitman never tried to execute the murder or grossly failed - Or even if you failed to hire the hitman: The attempt of inciting someone to murder you is punished as if you had murdered someone.
My impression, and the plausible explanation in the absence of the actual facts, is that this was something that the attorney agreed to, in order to allow a skittish client to reveal information pursuant to a favorable plea agreement. The police probably insisted that the client be handcuffed to someone while doing this to prevent the client from fleeing. The attorney probably offered to do the job instead of a police officer, to be able to provide advice to his client and keep his client calm enough to do it, which might not have happened (sacrificing the favorable plea deal that the attorney negotiated) if someone else were in that role.
Double jeopardy applies to the same facts, not to the same sorts of crimes. Say if you are tried and acquitted of murder of person A, that won't later save you from being tried for murder of person B. Same applies to your question: if the documents/testimony on the second occasion are different from the first occasion, there is no protection. If they are the same, there is.
If you wrote for example "I had thoughts about taking the axe from my garage and decapitating my neighbour", and your neighbour read that, he would reasonably be worried and contact the police. I would take that as a death threat, and the death threat is by itself illegal. There would be some range where I could claim that you were making a death threat and making excuses to avoid legal responsibility. You can have all the thoughs you like, you can write them into your private diary where nobody can read them, but as soon as you publish it, it becomes "speech" and some speech is illegal.
There are cases out there like Unnamed Petitioners v. Connors, State v. Unnamed Defendant, Williams v. Unnamed Defendant; there have been indictments of John Doe who was only identified via a DNA profile. Not knowing the actual name of a person wouldn't pose a problem per se, and it seems that when the name is not known, John or Jane Doe is generally filled in. There was in instance a year ago in the UK where rioters who refused to identify themselves, and prosecution decided to drop the case.
In England and Wales, under section 2 of the Suicide Act 1961 (as amended by section 59 and Schedule 12 of the Coroners and Justice Act 2009) it's a criminal offence to do an act capable of encouraging or assisting someone to commit suicide. I think that applies to Scotland too, and there is similar law in Northern Ireland. Encouraging suicide is also a criminal offence in some other common law jurisdictions, e.g. in Australia. While in other common law jurisdictions, if there isn't such a law, the person might instead be prosecuted for manslaughter - or not at all. The minimum, maximum and recommended penalties may well differ between jurisdictions. I don't know what you mean by "vengeance rampage" but I'm not aware of any jurisdictions where it is lawful for a person to cause harm to someone for revenge. States tend to reserve for themselves a monopoly on the use of force.
Self-Defense is an active Defense for Homicide (note, this is the legal term for taking a life. Criminal Homicide and Justified Homicide are two subsets of Homicide and are denoted by illegal actions and legal actions. Homicide as a result of Self-Defense is a Justified Homicide, regardless of the weapon, so long as it was applied with the minimal amount of force required to stop the criminal harm to oneself). Suppose you use a taser and the current causes the attacker to go into cardiac arrest and die. Your intention in using the taser was to stop the criminal from injuring yourself, your property, or another person or their property (defense of others). Even though the Taser is non-leathal, it's more like less lethal. Death by Taser is uncommon, but not impossible or rare. It would be handled as a defensive use of a weapon (same as if the attacker was killed by a gun) and processed as such. Pennsylvania is a Stand Your Ground State, meaning that in a public place, you do not have a duty to flee if your attacker approaches you in a public place, you do not have to prove that you could not flee in order to claim self-defense. However, if you pull a weapon and your attacker decides to flee, you can not give chase and kill him upon capture. You also need to have a reasonable expectation that the attacker is about to use deadly force (this normally means having sight of the weapon or what would reasonably look like a weapon i.e. a realistic toy gun without the orange safety cap would be reasonable). You also cannot claim self-defense if you were engaged in another crime when the attacker approached you (i.e. If you rob the Krusty Krab and the Hash Slinging Slasher approaches you with a knife, sucks to be you cause you don't have a right to be in the Krusty Krab after closing.).