At about 0710, Gunnery Officer Robert Hagen began firing at the closest attackers, then at a range of 18,000 yards (16,000 m) and registered several hits on the leading heavy cruisers....
At 0715, Hagen concentrated his fire on the leading cruiser squadron's flagship, the heavy cruiser
Kumano.
[9] At the 5-inch gun's maximum range of 10 nmi (12 mi; 19 km),
Johnston fired, scoring several hits on the
Kumano's superstructure, which erupted into flame and smoke...
The
Johnston pressed its attack, firing more than two hundred shells as it followed an evasive course through moderate swells, making it a difficult target.
[9] The
Johnston closed to within maximum torpedo range, and at 9,000 yards (8,200 m) she fired a full salvo of ten torpedoes.
[11] At 0724, two or three struck, blowing the bow off the
Kumano. Minutes later, 0733, the Kongo was forced to turn away north to avoid four torpedoes.
[12] The heavy cruiser Suzuya, suffering damage from air attacks, was also taken out of the fight, as she stopped to assist. The effect of the Johnston's attack was to generate confusion in the minds of the Japanese commanders, who thought they were being engaged by American cruisers