Camovic's lawyer, Robert Stahl, refuted the government's assertion that his client showed support for the Islamic State or other terrorist groups.
Camovic “is a troubled young man in a number of respects, as opposed to having any terrorist or Islamic leanings", Stahl said in a telephone interview.
Federal prosecutors and the Brooklyn district attorney's office announced the indictments within minutes of each other Thursday, just as the police department was releasing surveillance and body camera footage that captured the chaotic scene just before midnight on June 3.
The video, some of which was previously made public, shows Camovic walking up and stabbing Jean Pierre in the neck as the officer stood on a street corner while assigned to an anti-looting patrol.
The bloodshed happened hours after an 8pm curfew that was intended to quell the at-times violent protests.
Federal prosecutors said Camovic cased the area first, walking past the area and crouching nearby for several minutes before attacking.
After the stabbing, Camovic is seen chasing another officer, Randy Ramnarine, before rushing back toward Jean Pierre.
Ramnarine fired two shots at Camovic and Jean Pierre fired six times.
Camovic then wrestled Jean Pierre's gun away from him and fired six shots — wounding Ramnarine and another officer in the hand. Ramnarine and a responding sergeant returned fire.