A teen accused of stabbing a female customer used an 8-inch knife, and the woman feared the assault would continue had it not been stopped.

Heather Stanfield, 17, has been charged with attempted murder, and she is currently being held at the Muscatine County Jail on a $500,000 bond.

According to an Iowa City police complaint, the female customer went into the Red Pepper Grill, 517 S. Riverside Drive, ordered sandwiches and then sat down at a booth.

The 17-year-old saw the woman and allegedly went into the kitchen to grab a knife, intending to stab her. Stanfield allegedly stabbed the woman numerous times. The victim said she did not know Stanfield, the complaint said.   

According to the complaint, the woman sustained a stab wound on her left elbow, her left hand, and both the front and back of her right shoulder. The woman fought back during the attack, and a male witness physically intervened to stop the attack, the complaint said.

The woman told police she feared the assault would have continued had the man not disarmed Stanfield.

Attempted murder is a Class-B felony.