1. Find out when the event actually occurred or is alleged to have occurred. Use Google and news media to find out when it was first mentioned. Newspapers Global Newstream might be a great source as you can likely pinpoint the first newspaper article to mention an event. Hint: Try Google Advanced Search: https://www.google.com/advanced_search.
It won't let you limit by specific date but you can limit to a domain such as msnbc.com foxnews.com etc.
2. Check social media, Twitter, Facebook, Instagram for mentions of the event/news.
3. Find a variety of news outlets to analyze. Try to find left, middle, and right leaning from the spectrum. There are many tools to help you identify the media outlets including the Media Bias Chart used in class today, the Wall Street Journal's "Blue Feed: Red Feed", All Sides, and the Pew Research Center's Political Polarization site.
4. Take your selected news outlets and Google them, and dig into their ideology and purpose.
5. Find articles, blogs, television, radio, streaming and other coverage in a variety of media sources. You may find these on the Internet or through one of the libraries databases, such as Academic Search Complete or Newspapers Global Newstream, for example.
NewsDiffs tracks several news organizations and the articles they publish as they change over time.
Media Cloud is open source software that gives an instant analysis of how digital news media covers your topic of interest. You can see attention to the issue, the language used, and the people and places mentioned.
Try Google Alerts for a recent news event or topic and it will notify you of new mentions on the Internet.