Are there people who cant leave fingerprints?
yes because they burnt their fingerprints off.
they don't have the same fingerprints cause if the police were to look for a victim they would have to check the fingerprints of certain people and if someone has the same fingerprints they cant have 2 criminals. And humans are never the same even if your a twin. Everyone has different fingerprints even though you have children they never have the same fingerprints but maybe some jeans