re: 4 LEOs killed in Charlotte shootout, no picture of the perp on national news.

Media has been under pressure for several years to no longer name mass shooters and given them notoriety or fame. The theory is that some of them want to become famous, even in death, and this has been backed by their journals and online comments before the shootings. Some fear that publicizing the names of the shooters increases the likelihood of more incidents.

Unfortunately, there is always someone out there who nonetheless finds the name/pic and publicizes them.

Google "why don't media release names of mass shooters" and you'll find several articles on the topic.