Two adults who've been linked to the Kansas City mass shooting are now facing murder charges and other serious counts ... something just announced by KC prosecutors.
Lyndell Mays and Dominic Miller were both hit with 2nd-degree murder charges Tuesday ... and they're also up against armed criminal action and unlawful use of a weapon charges on top of that. These guys are different than the two teens who were charged last week.
THE TERRIBLE SCENE TMZSports.com
It's a stunning development, as we're just now learning about the fact that cops even had these two men in their custody.