User blog comment:Warmachine375/Why are the Faunus discriminated?/@comment-78.42.242.191-20150603194952/@comment-9464517-20150603205847

I still have no idea how the police failed to identify Mercury and Emerald. They could probably have analysed the mark left on the remains of Tukson's face and traced it back to Mercury through DNA traces.

Of course, that's not all. Keep in mind that there is an important figure who could very easily have linked Emerald and Mercury to Tukson's murder: the shopkeeper. He gave Emerald directions to Tukson's store. She promptly robbed him of his wallet, which she went on to leave, soaked in her DNA, on the street-corner near the shop. A few minutes later, Tukson was murdered. It wouldn't take a genius to link all that up.

Not to mention the various people on the street who would have seen the pair enter and subsequently leave the shop at the time of the murder.

After all that has been established, it's a case of identikit pictures being formed, police line-ups and hey presto! Emerald and Mercury are sentenced to life in jail.

Yet somehow they failed.