U.S. Navy Rear Adm. Robb Chadwick speaks to the media at the main gate at Joint Base Pearl Harbor-Hickam, Wednesday in Hawaii, following a shooting. (AP Photo/Marco Garcia)
Security stands guard outside the main gate at Joint Base Pearl Harbor-Hickam Wednesday. A shooting at Pearl Harbor Naval Shipyard in Hawaii left at least one person injured Wednesday, military and hospital officials said. (AP Photo/Caleb Jones)
A security guard stands outside the main gate at Joint Base Pearl Harbor-Hickam. (AP Photo/Caleb Jones)
The USS Arizona Memorial can be seen from the Pearl Harbor National Memorial Wednesday. (AP Photo/Marco Garcia)
Security stand outside the main gate at Joint Base Pearl Harbor-Hickam, Wednesday. (AP Photo/Caleb Jones)
HONOLULU Officials will beef up security as usual for the ceremony to remember those lost in the attack on Pearl Harbor 78 years ago, with service members and dignitaries confronting a fresh tragedy after a U.S. sailor killed two civilians, wounded another and then turned the gun on himself at the storied military base.