From the Washington Post:
Leaders of First Capital Command gang, or PCC, reportedly used cellphones to order the attacks. Gang members then riddled police cars with bullets, hurled grenades at police stations and attacked officers at their homes and after-work hangouts.
On Sunday night, the gang employed a new tactic: sending gunmen onto buses, ordering passengers and drivers off, and torching the vehicles.
…
“It’s absurd — the gang members can do whatever they want? They can just start a war? And why would they attack the transportation, normal people? Next it will be schools,” he said. “We should get the military on every corner and kill them.”
Here.