Do I need to provide an in-text citation for an ABC news story in my paper if I already provided the person's name?
Before I answer, I want to qualify my answer by saying without seeing the actual paper & the story you are using, I need to play it by ear.
So, I would say yes. Whether you are directly quoting someone from the story, are paraphrasing the contents of the story, you need to acknowledge the source. The academic reader has a right to know where your information comes from, and you have the responsibility to provide it.
Usually in-text citations list the author & the date, and should be traceable due to the alphabetical arrangement of your bibliography (so make sure you don't, say, use the person's name in the in-text citation, but list the news story in your bibliography under "ABC News").
For examples of in-text citations in APA, see - http://libguides.css.edu/content.php?pid=61826&sid=454619
For examples of in-text citations in MLA, see - http://libguides.css.edu/content.php?pid=61895&sid=455207
And when in doubt, always cite. It is better to do a little extra work than accidentally get into a situation where it could be seen that you weren't honest in your writing.
Good luck with your paper.