If you have liability insurance your insurance should cover you while driving another vehicle with permission of the owner. The problem with a company truck is the limit of liability you might have to have.
Usually by requesting permission.
You should be talking to the insurance company that insures the vehicle you were a passenger in. If it was a single vehicle accident they will be responsible but if it wasn't then the at fault drivers insurance would cover it.
No, but the passenger can readily get that info from the police report on request. If no report was made, that same passenger can have their own insurance company get the information based on DMV records.
If you purchased the rental company's insurance option then the rental company's insurance is responsible. If you did not purchase the insurance option, then YOUR insurance is responsible.
If the person driving the vehicle was doing so with the owners permission, IN MOST PLACES, the owner and the owners insurance company are financially responsible and you should be able to sue and get compensation.
If you wrecked it, you will be held responsible for it. And the owner could sue. If they gave you permission, their insurance would probably cover it, but the insurance company might come after you. And the owner would certainly want you to cover their deductable.
If you are willing to charge this driver with auto theft it probably will. If not, the insurance company will assume you are giving him permission after the fact.
towing company should have insurance
Bank's Insurance company
If they murdered the passenger, then there is not much you can do.
According to reviews of this car insurance company, this auto insurance company is not satisfactory in the least. Several customers have made claims regarding its terrible service and have been known to renew your policy without your express permission.
You and your insurance company are responsible.