Portland police Saturday identified the teenager they say carried a loaded shotgun into Parkrose High School -- and caused a massive scare Friday -- as Angel Granados Dias.

Dias, 18, was booked into the Multnomah County Detention Center at 12:03 a.m., some 12 hours after he reportedly was subdued and taken into custody.

Police also released a photo of the shotgun they say Dias brought into the school.

Portland police seized this shotgun as evidence, as the weapon they say Angel Granados Dias brought into Parkrose High School on Friday, May 17, 2019. (Portland police)

Dias was lodged on accusations of possession of a loaded firearm in a public place, reckless endangerment and two counts of possession of a firearm in a public building, according to jail records. Police indicated that Dias is accused of attempting to discharge the shotgun at the school, as an element in one of the charges.

Dias is being held in lieu of $500,000 bail. He is scheduled to appear in Multnomah County Circuit Court at 2 p.m. Monday.

No one answered the door at Dias’ house Saturday. A relative who lived next door said the family isn’t ready to talk publicly.

Police on Saturday declined to answer further questions.

Parkrose School District’s superintendent didn’t return a message seeking information Saturday.

Police have not said whether any rounds were fired.

It’s unclear what the gunman’s intentions might have been -- whether he intended to hurt himself or to hurt others, too. Classmates and friends of Dias’ said he had been very sad and lonely after a breakup with his girlfriend.

According to a letter sent out by Superintendent Michael Lopes Serrao on Friday, school officials appeared to have received a heads-up about a potential danger. The superintendent wrote that earlier in the day “two Parkrose students informed a staff member of concerning behavior from one of their peers” -- prompting security staff to respond.

Senior Alexa Pope, 17, said a security guard had entered her government class in the Fine Arts Building looking for the student, whom police later identified as Dias, but didn’t find him.

Five or 10 minutes later, Pope said, the student walked into the classroom with the gun. He wasn’t pointing the gun at anyone in the room, although it did appear that he was aiming it toward himself, Pope said.

Witnesses said he wore a black trench coat and looked distraught.

“We saw that and we all couldn’t process this," Pope said. "All my classmates were just like sitting looking at him like ‘That’s our classmate. Like he wouldn’t do anything to us. He wouldn’t harm us.’”

But they were still in enormous fear. Pope said when her boyfriend yelled “Run!", she and others sprinted out through a back door of the classroom.

Witnesses say Dias was tackled and then held down by a school security guard, Keanon Lowe, until police arrived. Lowe also was a star wide receiver for the Oregon Ducks during his college years and is a track and field and football coach at Parkrose High.

No one was hurt.

Lowe has been praised as a hero. He sent out three Tweets filled with gratitude and reflecting on how he “didn’t see any other choice but to act.”

Friends and classmates say Dias had shown an interest in guns and seemed to be having a particularly tough time recently. They wonder whether his only intention Friday was to send out a cry for help.

Senior Ashton Caudle, 18, described his friend as someone who was having recent family, financial and relationship troubles, enjoyed taking long walks, once walking from the school to downtown Portland, and had an interest in guns. Caudle said the friend showed him at least twice a video he took of himself shooting an AK-47 at a chair.

Caudle said he believed it was one of several guns the friend owned and that he would routinely talk about buying gun equipment, like ammunition.

“He never struck me as someone who would harm others, but I wasn’t too sure about himself,” Caudle said. “He made some poor choices but he’s not an evil person.”

Caudle said his friend recently had said he planned to kill himself, and Caudle and others had planned to talk with a school counselor at lunch time.

74 Gunman reported near Parkrose High School

It’s unclear where Dias might have acquired a gun. Some who knew him said he had remarked about being old enough to buy firearms now that his 18th birthday had passed.

Federal law bans firearms retailers from selling handguns, but not rifles or shotguns, to anyone under age 21. Oregon law allows residents to buy shotguns or rifles starting at 18.

The issue, however, is controversial.

After 17 students and staff died after a 19-year-old former student opened fire at Marjory Stoneman Douglas High School in Florida in February 2018, retailers large and small responded nationwide -- mostly by increasing the minimum age to buy within their stores to age 21.

Among stores announcing changes were Fred Meyer, Walmart, Dick’s Sporting Goods through its Field & Stream chain and Bi-Mart. Fred Meyer ultimately said it would stop selling guns or ammunition to people of all ages.

-- Aimee Green

agreen@oregonian.com

o_aimee

Oregonian staffers Everton Bailey and Samantha Swindler contributed to this story.

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