Accusing the parents doesn’t make any sense in this case.
They are accused of killing Madeleine, hiding her body for a month (during which no one noticed a bad smell), and then putting her in a rental car to dispose of her body.
I think it would be very hard to hide a body so good that local police can’t find it. Especially hard since the parents are in a foreign country.
I went to visit my sister near Phillipsburg. She said they thought they had seen both women at a Sunoco at the corner of route 49 and route 40. This would have been last spring. They reported it to police at the time.
Odd that both this possible sighting and the one in Effingham, Illinois were both along route 40.