Free legal news
JURIST (http://jurist.org) is a web-based legal news and real-time legal research portal powered by a mostly-volunteer team of over 60 part-time law student reporters, professors, editors, web developers The news portal offers access to domestic and international news.
The search "war crimes" in this portal will retrieve several articles what you may want to explore further.
Once you narrow down a writable topic you can start your legal research quest to locate authoritative legal resources on the topic you plan writing on.
Google News filter option
Google News filter option Fortunately, many newspapers are freely available on the internet these days. You may want to explore Google's advanced search template for these types of searches.
Subscription Newspapers
Westlaw Precision and Lexis+ also offers access to subscription newspapers.
Nexis Uni Contains more than 15,000 news, legal and business sources, including journals, television and radio broadcasts, newswires and blogs; local, regional, national and international newspapers with deep archives; extensive legal sources for federal and state cases and statutes, including U.S. Supreme Court decisions since1790; business information on more than 80 million U.S. and international companies and more than 75 million executives.
WashU students and faculty can sign up for a New York Times account with their law school email a via this link.
Here is a guide to newspapers and other news sources that you have access to via Washington University's library system: https://libguides.wustl.edu/newspapers.
