Question : Can't stop Sharepoint workflow

I have a workflow that sends an email for a task. The thing is that task has been deleted and the list item for which the workflow started has been deleted as well but the assigned user keep receiving the email, meaning the workflow is still running.
How can I stop that workflow if I don't have the list item associated to it and neither the task.

Answer : Can't stop Sharepoint workflow

I found it. Just need to do a CAG and one of the sequence would monitor if the workflowitem is still active and when not, it terminates the workflow.