The grand tour of Darren Harper’s old neighborhood in Southeast Washington is nearly complete. There’s the spot where he sold his first piece of crack at age 10, for five bucks. The sidewalk where he saw a man bleed to death from a gunshot wound to the neck. The house where his cousin shot his stepfather after the latter raised his hand to Darren’s mother. The sidewalk where Darren, in his late teens, had a shootout with his partner over a deal gone bad. The corner where Darren, in a rare moment of carelessness, was nabbed by police and caught a cocaine distribution charge.
The tour — no charge, no tips, no air-conditioned bus, no stuffy history lessons — is about to break up when Harper stops and says  … Pictures, video and more