You are assuming this infant was delivered in a hospital setting. The article says nothing about a hospital.
FWIW, I really don't believe there is sexual molestation involved here (not to say these kids are not being abused). It looks to me like Jacko likes to sleep with little babies in his bed the same way that little kids (maybe I should say "other little kids") like to sleep with all their toys and stuffed animals and pets. That's what these children are to him: his toys and his pets.
This is much creepier than garden variety pedophilia.