A shooting that injured one security guard at the Naval Air Station Corpus Christi in Texas on Thursday has been determined to be terrorism-related, FBI officials said. The shooter was shot dead, but a second person of interest may be at-large, the FBI said. “The public should remain calm, and if you see something, say something,” FBI officials said. ABC News has learned the shooting suspect has been identified as Adam Alsahli, according to three U.S. officials familiar with the investigation. The shooting unfolded at about 6:15 a.m. local time when the suspect sped through a gate, activating vehicle barriers, which stopped the car, a defense official told ABC News.