Six months after a Detroit police officer shot and killed 19-year-old Raynard Burton in the backyard of a vacant home following a vehicle chase and foot pursuit, there hasn't been a ruling as to whether the officer was justified.

Detroit police, who are investigating their own 22-year veteran officer with assistance from state police, haven't supplied all of the information or evidence required to make that decision, according to Wayne County Prosecutor Kym Worthy's office.

Detroit police initially submitted the investigation on Feb. 21, a week after the shooting, but prosecutors requested further investigation that hasn't been returned, according to Assistant Prosecutor Maria Miller.

Police say two officers attempted to stop Burton on Feb. 13 for speeding near Collingwood and Broadstreet, but he fled, crashed about a half mile later and ran into the backyard of a vacant Detroit home at 4255 Webb, where Burton was shot in the right side of his chest.

The officers from the department's Special Operations Unit followed Burton in a marked, black Dodge Charger.

Chief Craig addresses officer involved shooting that took place early this week. Posted by Detroit Police Department on Wednesday, February 15, 2017

Detroit Police Chief James Craig initially said the officers had their lights and sirens engaged, but two days later said he was misinformed.

They never turned on their lights or sirens "because there was too much distance between the police vehicle and the fleeing Pontiac."

"Right now, because the overhead lights were not activated -- you know the dashcam automatically activates -- there was some footage ... but the view of the shooting would not have been caught on in-car camera," Craig said on Feb. 15.

Hours after the shooting Craig also said Burton "lunged at the officer" and "there was a struggle over the gun."

Two days later, Craig couldn't "absolutely say" Burton attempted to grab the officer's gun.

"At this time, we don't know, but we do know there was a struggle, there was a garment removed from the subject, (who) was wearing a shirt at time," the chief said. "The officer indicated he did fear for his safety at the time of the encounter."

The officer feared for his life in part, Craig said, because he suspected Burton might be armed.

"What was described to us was that, at one point in the pursuit, the suspect was grabbing his waistline and (the officer) believed the suspect could have possibly armed himself," Craig said.

"At some point during this encounter, the officer gave certain directions to comply and at that point there was what we believe to be a physical altercation between the officer and the suspect, resulting in a single shot being fired," Craig said. "The officer felt for his safety and that's why he made the decision to fire his weapon."

While Detroit police and the Wayne County Prosecutor's Office haven't named the officer involved in Burton's killing, Craig released details about Burton's criminal history, including information about sealed juvenile convictions, and crimes in which Burton was suspected, but never charged.

While police didn't know it at the time of the shooting or the pursuit, Craig said the investigation revealed Burton acquired the Pontiac he was driving through an armed carjacking committed two days prior.

The victim in that case identified Burton as the culprit, Craig said.

Burton also had "a couple felony assaults, a couple misdemeanor assaults, (was) arrested for one stolen vehicle, (had) one narcotics arrest and one conviction where he assaulted a prison employee."

Burton was "implicated" in a January carjacking, but never charged because of a lack of evidence, Craig said.

Burton has no prior criminal cases listed in online Detroit District Court nor Wayne County Circuit Court records.

Michigan Department of Corrections spokesman Chris Gautz told MLive, "I don't show any records for anyone with that spelling."

MLive requested comment from Detroit police and state police regarding the status of the shooting investigation and was awaiting response.