Virginia Tech junior Terryn Wingler and her mother and 9-year-old brother were walking across campus Wednesday when suddenly a number of police cars and officers swarmed toward Burruss Hall.
Wingler said that police officers shouted, "'Take cover! Get back!'" She said her brother Nathaniel ran across the street and took cover behind a tree.
"I thought, 'Wow! Something's happening right now,'" she said.
Wingler's parents, Randy and Marta Wingler, came down from Shell Lake, Wisconsin, after the Monday shootings, and she was retracing her steps from Monday as part of her healing process when today's scare happened.
"It's so unreal," she said minutes after Wednesday's scare. She related "how mad I'm getting that someone would trash our school like this."
Authorities said Wednesday's incident turned out to be an "unfounded" threat.
-- By Ashley Fantz, CNN.com Producer/Writer