Bryan Kohberger sentencing: Idaho college student killer sentenced to life in prison

Surviving roommate Dylan Mortensen spoke in court through tears, saying, "He didn't just take their lives, he took the light they carried into every room."

"He took away my ability to trust the world around me" and "shattered me in places I didn't know could break," she said.

"I was barely 19 when he did this. We had just celebrated my birthday at the end of September. I should've been figuring out who I was. I should've been figuring out the college experience ... instead I was forced to learn how to survive the unimaginable. I couldn't be left alone. I had to sleep in my mom's room because I was too terrified to close my eyes," she said.

Mortensen recalled intense panic attacks and flinching at sudden sounds. "Sometimes I drop to the floor with my heart racing convinced something is very wrong. ... It's my body reliving everything over and over again," she said.

Much of her statement was devoted to remembering her four close friends who died: recounting the nights they spent binge watching reality television, making dinner together, going to parties at their university and the love that they had for each other.

Through a statement read in court by friend Emily Alandt, one of the surviving roommates, Bethany Funke, said she's still scared to go out in public but forces herself to do so because she knows her friends would want her to live her life to the fullest.

Funke recounted her memories of her friends at their off-campus home.

"Our house was not just a house, it was a home," Funke said.

She said Xana Kerndole was the life of the party and "kindest and funniest person," and that Ethan Chapin and Kerndole "were absolute soulmates."

Kaylee Goncalves "had the most beautiful, radiant smile" and could have ruled the world, she said.

Maddie Mogen, Funke's big sister in their sorority, was the "older sister I would've always wanted. There was no one I looked up to or admired more than Maddie."

"I wish more than anything I could hug them one last time," she said.

"I still tell them every night I will keep living for them," she said.

Friend Emily Alandt read a statement on behalf of Bethany Funke, one of the surviving roommates, describing how she woke up to her "worst nightmare."

"Never in a million years would I have thought that something like this would have happened to our closest friends," Alandt read in court.

Funke said she didn't know what happened that morning and carries regret and guilt over not calling 911 right away.

"I was so frantic that morning and scared to death not knowing what had happened. And when I made the 911 call I couldn't even get out the words," she said.

"That was the worst day of my life and I know it always will be," Alandt read through tears.

Funke said she thinks every day why she got to live and her friends did not, and said she felt "sick with guilt" when she looked at her friends' families.

She said the crime has left her terrified. She said she slept in her parents' room for nearly a year and made them double lock each door. She said she has never slept through the night and constantly wakes up in panic, worried that someone is breaking in, trying to hurt or someone she loves.