Michael Brown autopsy results are causing more tension in the case of the death of the 18-year-old. Three autopsies have been requested for the body of Brown, the unarmed black teenager who was shot several times and killed by a white officer on Aug. 9. If the death of Brown sparked havoc in the city of St. Louis, then the latest Michael Brown autopsy results will most likely ignite more anger in protesters.

Brown's death spurred violent protests in St. Louis, Mo. for over a week.

According to The Guardian, Missouri national guard troops were already ordered into Ferguson by Monday to quell the unrest.

Benjamin Crump, the Brown family's lead attorney said Brown's parents insisted on a private and independent Michael Brown autopsy since 'they did not want to be left having to rely on the autopsy done by the St Louis law enforcement agencies, the same individuals they feel are responsible for executing their son in broad daylight.'

Meanwhile, the medical examiner for St Louis County has carried out a separate Michael Brown autopsy including a toxicology report.

The Guardian reports that the Department of Justice has also taken  the unusual step of ordering a federal medical examiner to conduct a third autopsy on Sunday. The department has led a civil-rights investigation into the killing. A spokesman for Eric Holder, the attorney general, cited 'extraordinary circumstances' of the case as the decision for the third Michael Brown autopsy.

The private preliminary Michael Brown autopsy requested by his parents revealed that brown was shot at least six times, including twice in the head. Attorneys for the Brown family claimed on Monday that the findings of the private autopsy also indicated that the unarmed 18-year-old was killed while trying to surrender.

The New York Times reported that the private Michael Brown autopsy was performed by Dr. Michael Baden, a former New York City chief medical examiner.

Apart from finding out that Brown was shot 'at least' six times in the Michael Brown autopsy, according to The Guardian, Brown was ultimately killed by a bullet that entered the top of his head and travelled 'back to front'.

The Associated Press reports that Baden said it was likely the last of the bullets to have hit Brown and caused his death.

Attorney Daryl Parks considered this an argument saying that was fatally shot during a time when his head was well bowed.

Brown was revealed to have been shot by an officer named Darren Wilson.

According to Baden, 'there weren't signs of a struggle' on Brown's body, though police have mentioned that Brown assaulted Wilson after Wilson stopped him and a friend and told them to walk on the sidewalk rather than in the road.

Meanwhile, witnesses said Brown had his hands in the air while the officer shot him several times.

A Professor Shawn Parcells, a pathologist who worked on the Michael Brown autopsy with Baden, said that one shot located at the middle of Brown's right arm 'could have occurred when he was putting his hands up.'

Despite these claims from witnesses and Parcells, Baden had been more cautious, stating that the findings in his preliminary report on his Michael Brown  autopsy 'could be consistent' with suppositions that Brown had been shot as he charged towards Wilson.

Baden said, 'It's possible.'

According to the Times, the bullets did not appear to have come from a very close range since there was no gunpowder on Brown's body.

Baden also told the newspaper that Brown would not have survived even if he had been rushed to a hospital.

The AP reports that Baden did not return a message they left for him early Sunday.

Fortunately, Crump said the findings on the Michael Brown autopsy shows the teenager 'did not suffer'.

On the other side, the autopsy held by St. Louis County chief medical examiner Mary Case has been released to state prosecutors late Friday. The Michael Brown autopsy done by Case revealed that Brown had marijuana in his system during the time he was fatally shot by the white police officer.

According to The Washington Post, in a brief interview they had with Case, the medical examiner declined to comment on specifics of her Michael Brown autopsy. However, she mentioned that she is welcoming other autopsies performed on the body of the teenager, of which include Sunday's private autopsy by Baden and the other by Pentagon medical examiners.

Crump said the results of Case's Michael Brown autopsy 'sound consistent' with Baden's, but he said he was unaware of any marijuana in Brown's system.

According to The Guardian, Baden's autopsy results had been released officially shortly before the National Guard arrived in Ferguson. Their deployment was mandated by governor Jay Nixon as he signed signed an executive order early Monday morning after the most intense clashes in the protests.

In the meantime, Wilson, the officer who shot Brown, has not spoken publicly. However, a friend of his who declined to be named told the Guardian that Wilson admitted to shooting the teenager in the head. However, his version of the incident opposes accounts given by other eyewitnesses.

The private Michael Brown autopsy result is becoming increasingly provocative and politicised, according to The Guardian. For the moment, the accounts of both parties are open to interpretation, of which may include Wilson firing in self-defence, or that the six bullets only show excessive force on the part of the officer.

Michael Brown autopsy examinations only point to the highly unusual nature of the investigation of the Brown's death, reports The Washington Post. In the end, the verdict is still up to local prosecutors, along with Justice Department officials who are conducting a separate civil rights investigation of the shooting, to filter through all findings and determine once and for all if there need be criminal charges filed.