"If I had looked back, I might not be standing here," Wik said. "I might have been one of the ones who got hit."
Kira Rowland told KGW-TV that she was shopping at Macy's with her infant son when the shots started.
"All of a sudden you hear two shots, which sounded like balloons popping," Rowland told the station. "Everybody got on the ground. I grabbed the baby from the stroller and got on the ground."
Rowland said she heard people screaming and crying.
"I put the baby back in the stroller and ran," Rowland said.
Holli Bautista, 28, said she was shopping at Macy's for a Christmas dress for her daughter when she heard pops that sounded like firecrackers.
"I heard people running and screaming and saying 'Get out, there's somebody shooting,'" she told the AP.
She said hundreds of shoppers and mall employees started running, and she and dozens of other people were trying to escape through a department store exit.
Authorities went store-to-store to confirm that there was only one shooter and to escort hiding shoppers outside.
Tiffany Turgetto and her husband were leaving Macy's through the first floor when they heard gunshots coming from the second floor of the mall. They were able to quickly leave through a Barnes & Noble bookstore before the police arrived and locked down the mall.
"I had left my phone at home. I was telling people to call 911. Surprisingly, people are around me, no one was calling 911. I think people were in shock."
Associated Press writers Nigel Duara in Portland, Michelle Price in Phoenix and Manuel Valdes in Seattle contributed to this report.