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OREM, Utah — One student holed up in his house for two days after witnessing Charlie Kirk's assassination, nervous about going back to the Utah college campus where the conservative activist was shot. Another, unable to sleep or shake what she saw and heard, called her dad to come take her home.

Students who witnessed Wednesday's shooting at Utah Valley University are reckoning with trauma, grief and the pall the killing cast on their community.

Tyler James Robinson's arrest late Thursday calmed some fears. Still, questions persist about the alleged shooter's motive and planning, as well as security lapses that allowed a man with a rifle to shoot Kirk from a rooftop before fleeing.

The university said there will be increased security when classes resume Sept. 17.

In Robinson's hometown, about 240 miles southwest of campus, a law enforcement presence was significantly diminished Saturday after the FBI executed a search warrant at his family's home. A gray Dodge Challenger that authorities say Robinson drove to UVU appeared to have been hauled away.

No one answered the door Saturday at his family's home in Washington, Utah, and the blinds were closed.

Neighbor Kris Schwiermann, 66, recalled Robinson as a shy, studious and "very respectful" student who loved to read. She was head custodian at the elementary school Robinson and his siblings attended. She said she was stunned by the news of his arrest, describing the Robinsons as a "very tight-knit family."

She and the Robinsons belong to the same Church of Jesus Christ of Latter-day Saints congregation, though she said the family hadn't been active in the church in at least eight years.

"I want to make sure that people know that we don't have any ill feelings towards their family or him," Schwiermann said. "He made the wrong choice."

Critics of Kirk fired after his killing

The killing prompted pleas for civility in American political discourse but those calls were not always heeded, and some people who criticized Kirk in the wake of his death were fired or suspended from their jobs.

On Friday, Office Depot said it fired a worker at a Michigan store who was seen on video refusing to print flyers for a Kirk vigil and calling them "propaganda."

On Thursday, a conservative internet personality filmed a video outside Illinois Democratic Gov. J.B. Pritzker's home, urging viewers to "take action" after Kirk's assassination. Pritzker's security was stepped up.

At a makeshift memorial near Utah Valley University's main entrance in Orem, people left flowers in tribute to Kirk. Cars looped nearby streets Saturday, honking horns, flying American flags and displaying messages such as "We love you Charlie," "Charlie 4 Ever" and "RIP Charlie."

In the area where the Turning Point USA co-founder was shot, a crew began to take down tents and banners, scrubbing away reminders of the killing.

A handful of cars remained stranded in parking lots by students who left behind keys while fleeing the shooting. One student pleaded with an officer to let him retrieve his bike from beyond the police tape and cracked a smile as the officer let him through. The university said people can pick up their belongings early this coming week.

Dealing with the aftermath

Student Marjorie Holt started crying when she brought flowers to campus Thursday. Hours after the shooting, the 18-year-old said she lay in bed, haunted by the horror she witnessed. "I saw him fall over, I saw the blood, but for some reason it couldn't click to me what happened."

Unable to sleep because of a pounding headache, nausea and the day's trauma, she called her dad, who brought her home to Salt Lake City, about 40 miles to the north.

Returning to campus, Holt said, is going to feel "like a burden on my heart."

Student Alec Vera said Kirk was shot in the main campus gathering spot — where students take naps, meditate, do homework and hang out. "Seeing it when I go back, I will be pretty uncomfortable at first, knowing I have to walk past it each time, knowing what had just occurred here."

Student Alexis Narciso said he has flashbacks when he hears a bang, a honking horn or other loud noise. He was about 10 feet away from Kirk at the time of the shooting. "I just feel numb. I don't feel anything," he said. "I want to cry but at the same time I don't."

Jessa Packard, a single mother of two who lives near the campus, said even with a suspect in custody, her feeling of unease hasn't lifted. Packard's home security system captured video of the Dodge Challenger that police say Robinson drove to campus. After the shooting, she said, law enforcement officers descended on her neighborhood, searching yards and taking security footage.

"There's this really weird heaviness and I think, honestly, a lot of fear for me personally that hasn't gone away," Packard said. "The fact that there was like this murderer in my neighborhood, not knowing where he is but knowing he's been through there, coursing things out, is a really eerie feeling."

Halle Hanchett, 19, a student at nearby Brigham Young University, said she just pulled her phone out to start filming Kirk when she heard the gunshot followed by a collective gasp. Hanchett said she saw blood, Kirk's security team jump forward and horror on the faces around her. She dropped to the ground in the fetal position, wondering: "What is going on? Am I going to die?"

On Friday, she brought flowers and quietly gazed at the area where the kickoff to Kirk's "American Comeback Tour" ended in violence.

"The last few days I've just, haven't really said much, I just kinda like zone out, stare off," Hanchett said. "The memory, it just replays."

She's praying for the strength to move forward, she said, "and take it as: 'OK, I was here for this. How can I learn from this? And how can I help other people learn from this?'"

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