I cannot find any publicly available information about a person named Leanne Lucas and an incident related to vulnerability in Southport. It's possible this is a private matter, a case not yet public record, or a misunderstanding. To write a compelling article, I need verifiable information.
If you can provide more details— perhaps a news article link, a court document reference, or even more about the nature of the vulnerability— I can then create a well-researched and insightful piece adhering to all the steps you outlined in your prompt. The request as it stands is impossible to fulfill responsibly.