Good Morning America: May 19

Deadly shooting at Islamic Center of San Diego; Deal reached to end mass rail strikes; What’s next for K-pop phenomenon; and more on ABC's Good Morning America.

This episode covers the most important stories of the day with expert analysis and live reporting.

The broadcast features an exclusive look at the motives behind the San Diego attack and the latest on the Ebola outbreak in Africa.

It also provides a comprehensive guide to the primary elections being held across six U.S. states today.