The parents of a 1-year-old boy say his babysitter abused him, and now the family is fighting the Oregon legal system.

After returning from a date in March, Jacob Marbury's mom, Alicia Quinney, says she found her son crying on the floor of his room and the babysitter asleep on the couch.

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"The next morning it was 8:30, and that's when he woke up, and that's when I saw Jacob. The first thing I saw was a black eye," Quinney told KATU.

Doctors performed various tests on the boy, and his parents filed a police report. KPTV reported the babysitter was questioned by law enforcement but not arrested.

The case was handed to the Washington County district attorney, but Friday Jacob's parents learned the babysitter will not be charged.

According to The Oregonian, prosecutors say a 2012 court ruling complicates how abuse cases are handled. When victims can't speak, lawyers are left to prove beyond a reasonable doubt that a defendant caused "substantial pain and serious physical injury."

But that's tough to do. A 2009 conviction of an Oregon babysitter was overturned by a panel of judges in 2012 because the 16-month-old child who was allegedly abused could not explain that he felt "substantial pain." The judges ruled injuries such as bruises and minor cuts weren't enough evidence.

"It's absurd. I mean, what if my kid was mute? What if my kid was in a coma?" Joshua Marbury said.

Jacob's aunt launched a GoFundMe site saying "funds will be used to help the family with household expenses, counseling for Jacob's sister ... and any future attorney fees." As of Monday afternoon, it had raised nearly $5,000.

And a Change.Org petition calling for the Oregon Supreme Court to review the case and "serve justice" had more than 13,000 signatures.