I understand your concern about the situation involving the account using your relative's identity to cause trouble online. I recommend taking the following steps to address this issue promptly:
1. Report the Account: You can report the account by visiting the Facebook profile you provided and clicking on the three dots (...) on the cover photo. From there, select "Find support or report profile" and follow the prompts to report the account. Make sure to provide all relevant details to support your report.
2. Encourage Others to Report: Encourage others who have also been affected by this account to report it as well. The more reports Facebook receives about the account, the more likely they are to take action.
3. Contact Facebook Support: If the issue is urgent and requires immediate attention, you can try reaching out to Facebook's support team directly. You can do this by visiting the Facebook Help Center and looking for options to contact support.
4. Stay Vigilant: While waiting for Facebook to take action, it's essential to stay vigilant and monitor any further activity from the account. Document any additional instances of misuse to provide as evidence if needed.
I hope these steps help in resolving the issue swiftly. Remember to prioritize your safety and well-being throughout this process. If you need further assistance or have any other questions, feel free to ask.