A 17-year-old student dressed in a trench coat and armed with a shotgun and pistol opened fire at his high school outside Houston on Friday, killing nine students and a teacher, before surrendering to officers, authorities said.
Santa Fe High School, southeast of Houston, joined a long list of US campuses where students and faculty have been killed in a spray of gunfire.
The Texas shooting stoked the nation's long-running debate over firearms ownership and came about three months after 17 teens and educators were fatally shot in Parkland, Florida.
Students said the gunman, identified by law enforcement as Dimitrios Pagourtzis, opened fire in an art class shortly before 8 a.m. Students and staff fled and a fire alarm triggered a full evacuation.
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Classmates described Pagourtzis as a quiet loner who played on the football team. On Friday, they said, he wore the trench coat to school in Santa Fe, about 30 miles southeast of Houston, on a day when temperatures topped 90 degrees Fahrenheit.
Texas Governor Greg Abbott said Pagourtzis obtained firearms from his father, who had likely acquired them legally, and also left behind explosive devices.
"Not only did he want to commit the shooting, but he wanted to commit suicide after the shooting," Abbott told reporters, citing a police review of the suspect's journals. "He didn't have the courage to commit suicide."
Ten people were wounded, Abbott said.
Pagourtzis was charged with capital murder and denied bail at a brief court hearing later on Friday, where he appeared in handcuffs and wearing a green prison jumpsuit. He spoke in a soft voice and said "Yes, sir"
