Do I have the right to sue the person who killed my wife on a motorcycle?

In order to determine whether you could make a claim against the person that caused the accident with your wife, it would be necessary to review all of the facts of the case. Some of the questions would be when was the accident, was there was a police report and if so what did it say, what type of insurance did the other person have.

If there was negligence on the part of that person, then, yes, you would want to look into a claim for wrongful death. I recommend that you arrange a consultation before making any claims or discussing the matter with an insurance adjuster or other party. While it is assumed this happened recently, be aware that there are limitation periods on filing claims. The sooner you act, the better.