Police say she realized she had left her headlights on and returned to her car. As she was reaching in to turn them off, the attack happened.
"A male suspect grabbed her breast area from behind, and then her right hip area, spinning her around," said Santa Ana Police Corporal Anthony Bertagna.
According to police, the victim claimed she felt something puncture her chest.
"We believe she was cut or stabbed in the chest area. At that time she screamed really loud and the suspect was trying to get her to kiss him," said Bertagna.
At that time, police say, a car pulled in. The suspect ran off toward the school.
"I wouldn't stop here, not by myself," said Santa Ana resident Sandra Lopez. "There's always men around there drinking. Younger guys too. So I always tell my daughter, 'Don't ever leave the school.'"
The suspect is described as a Hispanic male, between 20 and 25 years old, about 5 feet 9 inches tall, weighing 150 pounds, with a thin to medium build. He was wearing a black hooded sweatshirt and sweat pants.
"It's definitely a scary thing and it's something young women shouldn't do is go into a park at night by themselves," said Bertagna.
If you have information related to this case, you're asked to call Santa Ana Police at (714) 245-8400.