Child rape charges have been dropped against a mentally ill man who allegedly molested a 5-year-old boy at Fall Creek Falls earlier this year.“He’s a 23-year-old man with an 8-year-old’s mind,” said District Attorney General Lisa Zavogiannis. “My hands are tied. There should be something in the law for this, but there’s not.”The alleged rapist, Brandon Brownwell, could have faced up to 25 years in prison for molesting the 5-year-old boy at Fall Creek Falls State Park in neighboring Van Buren County.