WHEAT RIDGE, Colo. (CBS4) – Investigators in Wheat Ridge now say a mother who claimed she and her child were stabbed on a bike path made her story up.

Police arrested Stephany Harwood, 21, Friday on charges of child abuse resulting in serious bodily injury because they suspect she was responsible for injuring herself and the toddler.

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Harwood had told police that she was attacked on Aug. 22 by a man who jumped out with a knife on the Clear Creek Greenbelt path near 48th and Otis streets. Both she and her child had extensive injuries — Harwood sustained a leg wound and the young boy was stabbed in the stomach.

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Police then said their suspect in the case was Marvin Wilson, a man with a long rap sheet that includes sex assault and who has eluded police for approximately 5 years. Harwood had been a witness to a crime Wilson committed many years ago.

At some point police decided the story of the attacker was faked.

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Harwood was being held Friday night at the Jefferson County Detention Center on a $100,000 bond. The child was being taken care of by a family member.