The backyard dumper turns out to be a security firm employee and a museum thief. Not only that, his accomplice might be in mortal danger.
Most people would be too afraid of the guilt
 to say anything, in case it didn't work out.
يخشى مُعظم الناس من تأنيبِ الضمير
نتيجة قول كلمة ما في حال لم ينجح ما نصحَ به
Die meisten fürchten sich zu sehr vor der
Schuld, falls es schiefläuft, um was zu sagen.
La maggior parte delle persone non si sbilancerebbe,
per non sentirsi in colpa in caso andasse male.
A maioria teria medo de dar uma 
opinião, já que pode dar errado.