Iran vows retaliation after US seizes ship; Father kills 8 children in Louisiana

President Donald Trump threatens to strike Iran’s infrastructure after a U.S. naval clash at sea. Now, Tehran is warning of retaliation as talks hang in the balance. Plus, a Louisiana father kills eight children, including seven of his own, before police shoot him. Investigators point to a domestic breakdown, but key questions remain. And a bar fight erupts into gunfire near the University of Iowa. As of Monday morning, five people are hospitalized, and police are searching for those involved. These stories and more highlight your Unbiased Updates for Monday, April 20, 2026.