TUESDAY NIGHT: David Muir anchors a special edition of ABC World News Tonight with David Muir as Iran launches an attack on U.S. military facilities in Iraq after a U.S. drone killed Qassem Soleimani, with Ian Pannell reporting from Erbil on the latest details, Martha Raddatz in Tehran where Iranians were vowing revenge and Jonathan Karl at the White House where President Trump is being briefed.https://abcn.ws/2QOryIY | ABC World News Tonight with David Muir

TONIGHT: David Muir anchors a special 1-hour edition of ABC World News Tonight with David Muir live from Las Vegas in the wake of the nation's deadliest mass shooting. Follow ABC News for the latest developments. http://abcn.ws/2xVfcqU | ABC World News Tonight with David Muir

TONIGHT: David Muir anchors ABC News coverage from Beauregard, Alabama, where at least 23 people where killed by one of 40 reported tornadoes to strike the Southeast in the past 24 hours. https://abcn.ws/2NILURW | ABC World News Tonight with David Muir

At least one of the four people shot and killed on a Florida speedboat off Cuba's coast, as well as one of the six wounded, are Americans, U.S. officials confirm. Cuba claims they wanted to infiltrate the island for "terrorist purposes." Martha Raddatz has the latest. https://abcnews.link/tHSLC8V | ABC World News Tonight with David Muir

In a 2019 FBI document, a former Palm Beach police chief said that Donald Trump once told him "everyone" knew about Epstein's behavior. Trump has repeatedly said he knew nothing at the time about Epstein’s sex crimes. Mary Bruce reports. https://abcnews.link/lhT8Zvy | ABC World News Tonight with David Muir

For the first time, five African American surgeons now lead the Trauma Service at the preeminent Johns Hopkins Hospital. This milestone, recognized during Black History Month, proves generations of determination behind every title. Linsey Davis reports. | ABC World News Tonight with David Muir