The bolt failed to stick in her arm and fell to the ground. She picked it up and ran off as the taxi followed her. She reached a nearby store and sought help from people working there.
She called the police from home later that day after she had fallen asleep for several hours. There was about 5 milliliters of liquid left in the syringe, the newspaper said.
Police took her to hospital to be checked and she was told that the liquid was a narcotic which would have made her muscles go weak, making it impossible for her to defend herself.
The other attack took place last Wednesday when a woman surnamed Che was injured in the same way.
Police disclosed an "important clue" led them to Tian, who confessed that he was the man who fired on the women.
126-centimeter-tall couples attend group wedding