Monday, the coroner ruled his death a homicide and hundreds of protesters took to the streets.
There have been marches in New Orleans for Keeven Robinson.
In an interview with CNN, Hilliard said she is hoping "to see the same justice for Keeven as with any other individual who has died at the hands of someone other than the police. I knew he just didn't die because the ozone was high". A final autopsy report is not expected for several weeks.
Sure enough, the coroner said the man died from "significant traumatic injuries" to his neck, which is consistent with someone grabbing, leaning or choking someone.
More than 100 people have been marching in a New Orleans suburb in remembrance of a 22-year-old man whose death after a struggle with sheriff's deputies has been classified as a homicide. Lopinto said the FBI's Civil Rights Task Force will also investigate. The officers pursued Robinson in a foot chase as he leaped over fences before catching him in the backyard of a residence.
Reportedly during the struggle Robinson stopped breathing.
Even if Lopinto had moved to reverse Normand, who retired past year to take a gig hosting a local talk radio show, there probably wouldn't be video to clarify how exactly Robinson got dead.
Lopinto declined to determine the officers. "That doesn't mean our officers did anything wrong, or it may mean that they did something wrong".
When asked if the cops involved used a chokehold, Joseph said he wasn't aware.More news: Italy appoints Roberto Mancini as head coach
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"We don't train somebody to hit someone with a brick - but if you're fighting for your life and the brick's there, you hit somebody with the brick".
However, this explanation also doesn't quite hold water as Robinson's gun was in his vehicle and he could not pose much of a threat unarmed.
No footage has emerged of the encounter.
All four detectives involved with apprehending Robinson are white.
"You got somebody in 'cuffs, take them to jail", Mr Jackson said. "Because you're not wearing a uniform, if you roll up on a couple of guys, they might think they're getting robbed, they might start shooting right away", retired New York Police Department Sergeant Joe Giacalone told The Intercept recently.
Robinson's death is one of the latest in a string of nationwide incidents involving police being accused of using excessive force against black men and teens.
Gaylor Spiller, president of the Jefferson Parish chapter of the NAACP, said in a news conference that she considers Lopinto a "decent, honorable sheriff".
What feels to the officers in sneakers and polos like a normal police action seems to the civilian like an ambush by strangers, making it more likely they'll flee or act to defend themselves than they might when surrounded by easily identified police.