The only mitigating factor I can think of for the parents it that is must be more difficult to find someone to watch an autistic child than a normal one. So they may not have had a wide selection of babysitters to choose from.
The sexual assaults occurred at a place called the Hopebridge Autism Therapy Center for pediatric patients. The poor children and their families. As if they don’t already have enough to deal with, now this.
Also was the babysitting a side hustle or was it a service offered by the therapy center? If the latter, the parents *might* not have met the actual babysitter.