No, it didn't. But we have to keep in mind what that we're talking about here. Everyone associated with this is corrupt. Vito knew this and that's why he cautioned the Dons about Michael's safety.

Even today there are no standards by which fingerprints are asserted to belong to an individual let alone in the late 40s. Hair analysis probably didn't exist, at least not on the DNA level.

"Generosity. That was my first mistake."
"Experience must be our only guide; reason may mislead us."
"Instagram is Twitter for people who can't read."