A 17-year-old facing a murder charge in Saturday's (Aug. 18) fatal shooting of Eleanor McMain Secondary freshman Chance Smith gave New Orleans police two versions of what happened that day, a warrant for his arrest states.

The first version Michael Dixon Jr. gave police was that he heard a gunshot and then saw 15-year-old Chance had been shot and tried to administer CPR to him, the warrant states. In the second version, Dixon claimed Chance, who Dixon told police was his friend, was shot accidentally. A social media post from an account police said belonged to Dixon, though, states he killed Chance "over jealousy," according to the warrant.

Chance was killed inside a home in the 3900 block of Sullen Place in Algiers, NOPD said. Chance's mother said he was less than two weeks into his freshman year at McMain, enjoyed designing clothes and was considering trying out for the football team. NOPD Superintendent Michael Harrison on Thursday announced the arrest of Dixon in the case, adding information police initially received at the scene did not match up with evidence.

The warrant for Dixon's arrest states he tested positive for a gunshot residue test. It also says one of two Instagram accounts detectives believe belonged to Dixon contained the message, "I killed my 15 year old friend over jealousy @mmikemitch killed chance," under a profile picture that showed Dixon. The warrant indicates @mmikemitch was a second account belonging to Dixon. Dixon denied the account displaying the message was his, the warrant states, and the @mmikemitch account was deleted.

The bullet trajectory also did not match up with Dixon's story that Chance was shot when a gun on a chair Dixon was sitting in accidentally fired, the warrant states. Despite an initial statement by Dixon that Chance was shot outside, the detective wrote, a search of a house in the block showed evidence of "a crime scene" inside. A semiautomatic handgun was found in a dresser drawer, the warrant also states, and two additional semiautomatic handguns were found outside a bedroom window.

During his first appearance hearing on Friday, Orleans Magistrate Judge Harry Cantrell appointed the Orleans Public Defender's Office to represent Dixon. He found probably cause to hold him and set his bond at $200,000.

A preliminary hearing has been scheduled in the case for Sept. 11. As of Friday, Dixon was being housed at the Orleans Justice Center jail, which houses adults but has a small juvenile housing unit for some underage defendants who are being tried as adults.