Photographic evidence ! If you look closely, you will see that not only is Blinken's one eye missing, Blinken his or her own self has become petrified! This is obviously the work of the Mafia or the Black Hand or the Cosa Nostra, who have been known to put people's feet into cement -- only this time the guys got carried away!

The missing eye provides absolute identification, as does fingerprint and DNA matching.