Mohammed bin Salman steps foot in the U.S. for the first time since Saudi critic Jamal Khashoggi's 2018 murder that caused global outrage.
Law enforcement officials briefed on the case identified the Pensacola shooter to ABC News as Mohammed Alshamrani.
The Pentagon says the U.S. will deploy more troops to Saudi Arabia and the United Arab Emirates after attack on oil facilities.
The title names the person with the most influence, good or bad, on the year's events.
President Donald Trump publicly thanked Saudi Arabia for plunging oil prices just a day after he was harshly criticized for deciding not to further punish the kingdom for the killing of U.S.-based columnist Jamal Khashoggi.
Saudi journalist Jamal Khashoggi was killed in a "fistfight" in the Saudi Consulate in Istanbul, the kingdom said early Saturday, acknowledging the writer's death for the first time. Authorities said 18 Saudi suspects were in custody for his slaying and intelligence officials had been fired.