A law enforcement source and police dispatch identified Cain Clark as a suspect in a shooting at the Islamic Center of San Diego, an attack authorities are investigating as a hate crime. People who knew the 17-year-old told CNN they were in shock. Another 18-year-old suspect has yet to be identified. Three people were killed, and the two suspects were later found dead.

Xi Jinping warns Trump about Taiwan

In a rare political move, Defense Secretary Pete Hegseth made a campaign stop to throw support behind Ed Gallrein, the Trump-endorsed Republican challenger to incumbent Thomas Massie, just one day before Kentucky’s primary. CNN's Jeff Zeleny reports.