India, March 21 -- You don't enter Uttam Nagar's JJ Colony these days. You are allowed in step by step, barricade by barricade, under watch, under escort, and under suspicion. Days before Eid, what was once a cramped but lived-in neighbourhood has turned into a tightly controlled grid of fear and vigilance.

More than 35 police personnel have been deployed across the colony. Riot-control vehicles wait at corners. Entry is filtered, movements are monitored and persons carrying cameras are not being allowed.

The trigger lies in the killing of 26-year-old Tarun Kumar Butolia earlier this month. But the story here is no longer just about a crime. It is about what follows: rumour, anger, silence, and a fragile calm held together by force.

To...