Pearl Harbor shooting unfolded in 23 seconds in packed area

Police redirect traffic from the Makalapa Gate entrance to Joint Base Pearl Harbor-Hickam, Wednesday, Dec. 4, 2019, in Honolulu, following a shooting at Pearl Harbor naval shipyard. (AP Photo/Marco Garcia)
Security stands guard outside the main gate at Joint Base Pearl Harbor-Hickam, in Hawaii, Wednesday, Dec. 4, 2019. A shooting at Pearl Harbor Naval Shipyard in Hawaii left at least one person injured Wednesday, military and hospital officials said. Joint Base Pearl Harbor-Hickam spokesman Charles Anthony confirmed that there was an active shooting at Pearl Harbor Naval Shipyard. (AP Photo/Caleb Jones)
Security stand outside the main gate at Joint Base Pearl Harbor-Hickam, Wednesday, Dec. 4, 2019, in Hawaii. 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)

HONOLULU — The U.S. Navy sailor who fatally shot two people at Pearl Harbor before killing himself was unhappy with his commanders and had been undergoing counseling, a military official said Friday.