The white gunman charged with killing 10 Black people in a racist mass shooting at a Buffalo supermarket pleaded not guilty to federal hate crime charges punishable by the death penalty.

Police are searching for a gunman who killed two people and injured three others in a string of 7-Eleven store robberies in six Southern California cities.

The attack was especially shocking in one of the world’s safest countries, where guns are strictly controlled.

Portraits of the dead are emerging from the shooting that killed at least seven in Chicago suburb Highland Park.

The gunman then evaded initial capture by dressing as a woman and blending into the fleeing crowd, police said.

Meanwhile, law enforcement agencies have resisted releasing information that could shed light on how police responded to the attack.