Moments after a Police Officer was shot and killed inside. This morning, the fbi joins the investigation into what happened. And family feud. The Surveillance Video being watched around the world today. Beyonces sister appearing to violently attack jay z in an elevator. What set off that ugly scene, today, tuesday, may 13th, 2014. From nbc news, this is today with matt lauer and Savannah Guthrie, live from studio 1a in rockefeller plaza. And good morning, everyone. Welcome to today on a Tuesday Morning. Why is our crowd so excited . Well, because dolly parton is out there, working nine to five. Actually going to work a little earlier today, putting on a great concert on the plaza. Cant wait to see her. Weve got some dolly fans and impersonators in our crowd. So yeah, well get a great concert from her and well catch up with dolly in a little bit. Make sure you interview the right one. Meanwhile, our top story, got more trouble, this time of his own making, from embattled clippers owner