It’s happened again.

Chilling cell phone video surfaced Tuesday of two Louisiana cops killing a 37-year-old man selling music outside a Baton Rouge convenience store after an anonymous caller claimed he had a gun.

The police gunfire sparked impassioned protests that continued past midnight outside the store — 24 hours after authorities shot Alton Sterling during a fatal 12:35 . encounter. More than 100 demonstrators shouting “no justice, no peace” clogged the street, setting off fireworks and blocking