Munguia said she had just closed up her booth and was walking with her boyfriend when she heard what sounded firecrackers.
"We ignored it, we thought it was like a rifle from a marathon," she said.
Those sounds were gunfire.
"We turned around when we heard the gunshots; we'd seen a guy. He was dressed in camouflage and like an orange vest and I thought he was a cop," Munguia said.
Munguia said she was approximately 30 feet away when she saw a man with a big rifle, who was shooting into the crowd.
"I literally felt like he stared straight at me where we were at, and when I saw him stare straight at me, I saw the cops shoot him," she said.
That's when she said her boyfriend pushed her toward a stand to hide. Munguia said she heard people telling her to lay on the floor.
"I was scared," she said. "I thought we were going to get shot."
Munguia is from the town of Tulare in California's Central Valley. She said she's been to countless events just like the garlic festival, but never thought this would happen near her.
"I'm thankful for my life. I'm thankful that I'm going to go home," she said.
Authorities say one suspect is in custody and a second is still at large.