Everybody's a liar except your two little darlings.
So you think an elderly, hard of hearing Capezzali was capable of hearing people running off and discerning it was multiple people running in opposite directions - all without even opening the window. YOU think that's credible?
So you think Quintavalle was credible? Bearing in mind...
1. He was shown a picture of Amanda, claimed to recognize her and had seen her previously in the store but always in the company of Raffaele.
2. Despite the police coming to his store to inquire about Amanda perhaps buying bleach there, and despite Amanda's photo being published in the media thousands of times, it never once dawned on him for more than a year that he should probably mention to the police that he saw Amanda that morning.
3. No one else - not one of the clerks, not one of the customers there, no one else on the street that morning, not even any of the CCTV cameras in the area -saw Amanda that morning.
4. Apparently Amanda got up early just to go to the store, walked around in an effort to make sure she was seen (but apparently didn't do a very good job) and then head home without ever buying anything.
So you think Curatolo was credible even though he was adamant he saw Amanda and Raffaele the same night the disco buses were picking up people dressed in costumes.
And you think it's just a coincidence that all three of these "witnesses" just happened to have epiphany moments immediately after Fois came to see them?
Nope, not everyone's a liar, but these three certainly were either lying or they were duped/conned into making their claims. Either way, to consider any of the three credible does not speak very highly of your critical thought skills.