I am very sorry for everything that you are going through. Generally, once a case is settled, with the exception of workers compensation settlements, you can’t seek further damages from the settling defendant. Workers’ compensation allows you to re-open a case after a settlement if you do so within 2 years of the last payment made by the workers’ compensation insurance carrier.
I will assume from your comments that the case was a not a workers’ compensation case and that there was...
I am really sorry to hear about your situation. Unfortunately, based upon the year of the accident, you are too late to pursue any further workers' compensation benefits for that injury. You must file a petition for workers's compensation benefits within 2 years from the date of the accident or from the date the last benefit was paid. Good luck to you.
The first thing you need to do is stop talking to the police and consult with a lawyer. The state will have to prove beyond reasonable doubt that you took the money. They can do this via circumstancial evidence if no concrete and direct evidence exists. That is why you should stop talking to the police.
It is not illegal to smell of marijuana. The smell could give the police reasonable suspucion to go a little further like search the area near you. If you were to admit to smoking it you could be charged with being under the influence etc. It is never a good idea to make any admissions to a police officer.
The interlock device is mandatory by statue. The court only had some discretion on the maximum time that the interlock device must be installed after your suspension. I do not think that the interlock is mandatory in another state. But, before you drive in NJ, you will need to restore your privileges and that will require proof that you paid and maintained an interlock device for the time required by court. Good luck.
You really need to provide more information before I could answer your question. Was there a personal relationship between the two of you? If this matter is pending in municipal court, you could resolve the matter via community dispute resolution. Make sure you know all of your options before you plead guilty. Good luck.