On Monday a coroner revealed that a preliminary autopsy indicated the cause of death was asphyxiation, and there was evidence of traumatic neck injuries.
The Jefferson Parish Sheriff's Office put the four narcotics agents involved in the confrontation on desk duty and asked Louisiana State Police and the FBI civil rights task force to join his investigation of how drug suspect Keeven Robinson, 22, was killed Thursday.
Following a "brief" struggle, an officer handcuffed Robinson, who then stopped breathing.
"Somebody's family actually lost their life, and I'm very cognizant of that today", Lopinto said.
"Now it's time for us to move on to making funeral arrangements for a 22-year-old that should not have died", she said. "And when the police do press them, we want them to be able to let the police do their job, but they're afraid of the police".
Robinson was allegedly being investigated for drugs and was spotted at a local gas station when he took off in his vehicle.
An air-quality alert had also warned residents in the area of particularly unhealthy ozone levels that day.
Cvitanovich was quick to point out that when he said "homicide", he did not mean in the legal sense, but in the sense that Robinson died as a result of the actions of others.
According to the local coroner, Dr. Gerry Cvitanovich, the initial autopsy found significant injuries to the soft tissue of Robinson's neck. We are confident that at the end of our process, this is going to be the cause of death.
The detectives were read their rights, and State Police troopers were there when the detectives gave statements about Robinson's death, authorities said.
He shared the findings with the homicide victim's mother, the AP notes.
"The reality of it is they were in a fight with this gentleman", Lopinto said. The investigation is supposed decide whether or not the level of force used by detectives was justified. Jefferson Parish Sheriff Joseph Lopinto said Robinson was being pursued for dealing drugs. He fled police, according to Lt. Jason Rivarde, a spokesperson for the Parish Sheriff's Office.
The sheriff said he told reporters Thursday that asthma was the likely culprit because that information - supplied by Robinson's family - was the best information he had at the time.
The deputies, who were all white, have been read their rights and are co-operating with local, state and FBI investigators.
"Never can have too many sets of eyes to make sure we're doing it properly", he said. "I don't want to delay disclosure regarding the direction in which we're heading from Mr. Robinson's family, the sheriff's department or the media", Cvitanovich said.
Even so, she said, "I will not go away".