This is absolutely awful. Losing one of my children is my greatest fear.
In some cultures the standard OP is to never contact law enforcement and tell them anything. This has to stop, especially during cases like this.
I'm not being negative, just being very realistic - the likelihood of that girl being alive is next to zero at this point. She may very well be alive today if that goofball would have stepped up and contacted the police. That guy and his moron wife should be prosecuted for watching a young girl get kidnapped and doing literally nothing about it. What a disgrace and embarrassment