Ron DeSantis ordered flags across the state be lowered to half-staff from sunrise to sunset Sunday to honor the 17 lives lost in the Parkland school shooting. Authorities said a former student of Marjory Stoneman Douglas High School opened fire on campus with an AR-15 rifle on Valentine’s Day in 2018. When the gunfire ended, 14 students and three staff members were dead, and 17 others were wounded. In his proclamation for a day of remembrance, DeSantis asked fellow Floridians to pause for a moment of silence at 3 p.m. Sunday. The panic alert measure was dubbed “Alyssa’s Law,” in honor of 14-year-old Alyssa Alhadeff, one of the students killed three years ago.