Sunday's shooting caused a frantic scramble for safety that led to Las Vegas concert-goers taking some extreme actions.
Fences of nearby properties were trampled, and some businesses were broken into for shelter.
John Rounds is a co-owner of Creto Worldwide, a concrete waterproof sealing business near the backside of the Route 91 Harvest Festival on Reno Avenue.
When Rounds arrived Monday morning, he discovered a shattered window and trails of blood lining the carpeting.
"First thought is, 'Oh man, I hope nothing was taken,'" he said. "And then as you settle down, you realize the impact of everything that individuals are looking for safety."
Rounds says he hopes his building was able to bring some hope to the intruders.
A neighboring business had its door kicked in, and a nearby escape room experience, Xterious Escape, also served as a makeshift shelter.
"Fifteen people ran into our building and one of them got shot in the back," said Peter Banyai, a game executive at Xterious. "They were panicking so [we weren't] going to leave. It was just a chaotic situation."
Xterious employees closed the doors and shut off lights, essentially creating their own lockdown until 4 a.m.
The escape room is holding a fundraiser this weekend. They'll be giving away some of their merchandise as well as collecting donations. All the proceeds will go toward the victims fund.