SANTA FE, USA - MAY 18: Highway 6 closed by police officials after a lone gunman opened fire at Santa Fe High School in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )
SANTA FE, USA - MAY 18: Highway 6 closed by police officials after a lone gunman opened fire at Santa Fe High School in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )
SANTA FE, USA - MAY 18: Fire fighters getting briefed in front Santa Fe High School after a lone gunman opened fire in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )
SANTA FE, USA - MAY 18: Crime seen in front of the Santa Fe High School after a lone gunman opened fire in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )
SANTA FE, USA - MAY 18: A military vehicle en-route to Santa Fe High School after a lone gunman opened fire in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )
SANTA FE, USA - MAY 18: Police direct traffic at a road closure after a lone gunman opened fire at Santa Fe High School in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )
SANTA FE, USA - MAY 18: Security forces take security measures back of Santa Fe High School after a lone gunman opened fire in Santa Fe, Texas, United States on May 18, 2018. At least 10 people were killed and 10 others injured in Texas on Friday after a gunman armed with a shotgun and a .38-caliber revolver opened fire at the Santa Fe High School. ( Tharindu Nallaperuma - Anadolu Agency )