Alvara:

Sherlock turned his attention back to the criminal, still hooded but the gun could tell some of what the shadowed face didn't. Cheaply made and about six years old from what the familiar manufacturer design could tell him. Dirt under the short finger nails made it obvious that he did manual labor, most likely grave digging do to the nature of his affiliation with local small gangs and the blackmailing ring. The dirt under his fingernails was constant with the conclusion as well, a deep rich brown that was common in soil with high collections of decomposing plants and animals.

Overall, a petty criminal who was stuck in that way of life, not there by choice. Easy to manipulate. He wishes he had a bit more of a challenge.

"You're a grave digger, I take it?" Sherlock said, gaining a bit of a worried glance from John as he stepped forward carelessly to the man who was obviously willing to shoot one of them. "Not much money in being a simple lackey for a criminal organization. Bury a lot of bodies but never get the credit for killing them."

"Sherlock." John hissed, not sure where the consulting detective was going with this but the last sentence sounded a lot like Sherlock was trying to convince the hooded man to kill them.

"Is it really worth it? If the only reason you're staying with them is money or protection from the police, they won't supply you with that for much longer." John was gritting his teeth now as Sherlock spoke, alarmingly aware of how close he was getting to the criminal aiming a gun directly at Sherlock's chest. "They will know that I've tracked you down and see you as a liability. They'll get rid of you. You could easily get away if you just tell me where the regime of the crime ring is. They will be arrested long before they can punish you and you will get away clean. Understood?"

The grip on the cheap gun weakened slightly, seeming to imply that he had gotten through to the criminal's muddled mind. It was tense for a moment before the soft smirk on Sherlock's face dropped at the sight of the aim of the gun being corrected and the trigger being pulled.

Sherlock always hated it when he missed something vital in his deductions.