That was a close call, the shot went straight through the window and hit the criminal, saving Sherlock's life, but... Who shot the gun? Sherlock wasn't sure, he tried looking through the window to see if he could see anyone but there was no one... He doesn't think much about it, another case solved, right? He should probably leave the building, the police are on their way and they'll want to interrogate him, plus he left his new flatmate alone in their flat... They must be worried