Is being dead considered a valid alibi? If someone would legally be considered DEAD for a period of time¹ and during that period of time they would commit an illegal act, in the UK, could they, during a lawsuit, claim to be innocent because they were dead and thus couldn't have done anything, let alone something illegal? ¹A doctor declared them dead after an injury but they recovered without anyone knowing. (living people can be legally dead)
An alibi in itself isn't necessarily a trump card. A legal declaration that you were dead despite being self-evidently alive doesn't seem a persuasive alibi.
Can I sue? (Shall I sue? Is up to you) Yes, anyone can sue anybody but that doesn't mean it will be successful. The likely candidate for making a claim seems to be under the tort of Emotional Distress, however, note that... Since the definition of offensive conduct is subjective by its very nature, the courts have set high standards to make out a claim for intentional infliction of emotional harm. To be successful, the plaintiff must show that the defendant intentionally or recklessly engaged in extreme and outrageous conduct which caused severe emotional distress to another person. Source ...but according to the OP and comments, this criteria does not appear to be have been met.
Yes Now, murder needs a definition because they are all subtly different. Let’s use the one in the new-south-wales Crimes Act 1900: Murder shall be taken to have been committed where the act of the accused, or thing by him or her omitted to be done, causing the death charged, was done or omitted with reckless indifference to human life, or with intent to kill or inflict grievous bodily harm upon some person, or done in an attempt to commit, or during or immediately after the commission, by the accused, or some accomplice with him or her, of a crime punishable by imprisonment for life or for 25 years. The only real difficulty is in the phrase “causing the death charged”. So a sensible prosecutor would charge both defendants with both deaths. A jury would find them guilty beyond reasonable doubt of one of the “death[s] charged”. The case is similar to Rogerson and McNamara who took a live Jamie Gao into a storeroom and came out with a body. Each accused the other of the murder - the jury didn’t believe either of them.
what if it is established in court that you knowingly or through gross negligence included a falsehood, or a claim you have no evidence for, just to clear that initial hurdle? What would the consequences be for that? The case proceeds and if it goes to trial, the finder of fact determines if the case prevails or not. Also, note that except in the case of a verified complaint, a complaint in a civil case is not made under oath or under penalty of perjury. In the rare and unlikely event that it is established that you knew that your case had no factual basis at the outset, you (and your attorney in many cases), can be sanctioned by the court, usually in the form of the attorney fees incurred by other side as a result of the knowingly false statement.
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.
A contract can’t legalise illegality Let’s assume that absent the “simulation” disclosure in the ToS, this would be fraud. The question then becomes, does making the disclosure make it not fraud? Fraud requires dishonesty and deception. These are measured by what a reasonable person would determine from the overall conduct so a small piece of truth in amongst a web of half-truths and outright lies is still dishonest and deceptive. From the perspective of US law, is Bob doing this regarded a scam? No, but only because “scam” isn’t a legal term - it’s slang for fraud and this is fraud Is this a criminal case, or a civil case? Both What evidence can Tom provide to support the lawsuit? Whatever he has. However, in practice, these types of fraudsters are rarely ever caught and it’s even more rare for the victim to recover their money. They are usually off-shore in countries with either poor rule of law or which will not extradite their nationals.
As far as I know, every jurisdiction in America limits perjury to cases of lying under oath. Because it seems unlikely that the driver would be under oath at this point, you would probably lack probable cause to make an arrest. At the same time, many states have separate laws addressing the making of false reports, lying to an officer, etc. I'd imagine most jurisdictions would have a law supporting an arrest for lying at the scene, even if not for perjury.
If that which you describe in your comment ( Facebook post as only basis for warrantless search) is, and can be shown, to be the only basis for the search, and there was no evidence of a crime in plain view when they arrived.....then yes, it is likely the search and all evidence acquired from the search would be excludable. As to whether the individual could still be prosecuted, that depends if a case could be built independent of the evidence collected during the search.