What we know so far about the Santa Fe High School shooter

Dimitrios Pagourtzis, the 17-year-old suspected of killing ten people at Santa Fe High School in Texas, kept a journal where he outlined his plans for the shooting, Governor Greg Abbott told reporters on Friday.

Pagourtzis was booked into the Galveston County jail on capital murder charges Friday afternoon and is being held without bond.

He was arrested after he opened fire at the high school Friday morning, armed with a shotgun and a .38 revolver, killing at least ten people: nine students and one adult.

Both of the firearms belonged to his father, Abbott told reporters at a press conference, and had been purchased legally. Authorities also said that homemade pipe bombs were discovered at the school and its surrounding area. Pagourtzis was also allegedly armed with pipe bomb, which he had apparently constructed himself.

Screenshots of his social media accounts offer some glimpse into his mindset in the days and weeks before the shooting: Among his posts included a picture of a t-shirt, emblazoned with the words “Born to Kill,” and a trenchcoat bearing a Nazi military symbol, the White Cross, as well as a hammer and sickle, a staple of communist imagery.

Facebook told NBC News that it deleted Pagourtzis' Instagram account after the shooting. He reportedly followed just 13 accounts: eight were gun fan pages, the other accounts included the White House, President Donald Trump, Melania Trump, and Ivanka Trump

Authorities have not yet determined a motive, and are hoping that the clues left behind in Pagourtzis’s journal, and in his posts on social media, will provide them with clues. Abbott said on Friday that writings in the journal indicated that Pagourtzis intended to commit suicide after the shooting.

He was considered bright by his teachers, and neighbors told VICE News that they didn’t spot anything unusual about the killer or his family — at least nothing that would have led them to think Pagourtzis was capable of such violence.

“We’re in shock,” neighbor Gloria Garcia told VICE News. “We know the family and he didn’t seem like the type who would do anything like that. They seem like a real good family.”

The Pagourtzis family hasn’t yet commented on the shooting. A woman who answered the phone at a number associated with the Pagourtzis family declined to speak with the Associated Press. “Give us our time right now, thank you,” she said.

Pagourtzis is listed on the roster for the high school’s Freshman football team for the 2015-2016 season. He was set to graduate in 2019.

Abbott said that Pagourtzis did not have a criminal record or a history of violent behavior, and drew a comparison to Parkland shooter Nikolas Cruz.

“There were not those types of warning signs,” Abbott said. “We have what are often categorized as red-flag warnings, and here, the red-flag warnings were either nonexistent or very imperceptible.”

Cover image: Santa Fe High School blocked out 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/Getty Images.