Two years ago, a Saudi Arabian pilot opened fire at the Pensacola Naval Base, killing three and injuring eight more. He had secretly pledged allegiance to terrorist group Al Qaeda.

The victim's families and survivors claimed in a lawsuit that Saudi authorities knew or should have known about Al-Shamrani and pointed to social media posts.

The families of three U.S. service members killed and 13 others who were severely wounded at NAS Pensacola have sued Saudi Arabia over its role in the 2019 attack.

Attorney General William Barr said the FBI has found a link to al-Qaeda on the phone of the Saudi suspect in the shooting at Pensacola Naval Air Station last December.

Attorney General William Barr and FBI Director Christopher Wray announced that Pensacola Naval Air Station shooter Mohammed Alshamrani communicated with Al-Qaeda [AQAP] associated based on evidence.

Attorney General Barr announced that 21 Saudi military trainees will be expelled from the country amid an investigation of the Pensacola shooting last month.

Attorney General William Barr said the attack at Naval Air Station Pensacola that killed three sailors and wounded eight others was “an act of terrorism.”

More than 20 Saudi students are expected to be expelled from the U.S. after a Saudi military officer killed three sailors and wounded eight others at Naval Air Station Pensacola.

A Pentagon screening of Saudi military students training at U.S. bases found "no information indicating an immediate threat" in the wake of the Pensacola shooting.

New details have been released in the Pensacola air base shooting.

The Pensacola naval base shooting suspect was identified as member of the Saudi military. Mohammed Alshamrani was one of about 200 foreign nationals training on the base.

FBI agents investigate whether the shooter acted alone or if anyone helped him; the shooting is being classified as a terror attack.

Federal investigators have determined that the shooting at the Air Base Pensacola that killed three people was likely a "terror" attack inspired by radical ideology.

The Pentagon has suspended flight training for all Saudi military students in the wake of the Naval Air Station Pensacola shootings.

Shootings in Pensacola and Hawaii left five victims dead in three days.

The Navy called the decision affecting 303 students across three Florida naval bases a “safety stand-down and operational pause.”

Three people were killed and eight others were wounded in the Pensacola shooting.

Investigators are retracing the steps of the Saudi Air Force lieutenant who opened fire at the base, killing sailors Cameron Walters, Mohammed Haitham and Joshua Kaleb Watson.

The suspected shooter who gunned down three U.S. sailors was a member of the Saudi Air Force training on the base in Pensacola, Florida.

Investigators probing report that the suspect in the Pensacola naval base shooting watched the videos in the presence of some friends in the days prior to the attack.

Officials look for a motive and the secretary of defense weighs in.

Agents are combing through Mohammed Alshamrani’s electronic devices amid reports that he watched mass-shooting videos with friends before a deadly attack that left three dead.

A vigil was held for the victims of the Pensacola naval base shooting.

The gunman opened fire at a Navy base in Florida just two days after a deadly shooting at the Pearl Harbor naval base.

Investigators trying to determine whether shooting was terror-related or not, officials told ABC News.

Four people are dead including the suspect after an active shooting incident at a naval base in Pensacola, Florida.

Police responded early Friday morning to an active shooter situation at Naval Air Station Pensacola after a shooter opened fire killing three and wounding several others.

Four people are dead including the suspect after an active shooting incident at Naval Air Station Pensacola, police said.

Eight people injured in the shooting were taken to Baptist Hospital, a hospital spokesperson told ABC News.

The base remains on lockdown.

ATF is responding to the scene.