The fired Balch Springs police officer who killed 15-year-old Jordan Edwards "flipped off" the car containing Jordan's body and four other teens, according to court records filed Thursday.

Roy Oliver (Parker County Jail)

The records reveal a troubling pattern of behavior before and after Roy Oliver fired his rifle into a black Chevrolet Impala full of teenagers leaving a party April 29.

Oliver, 38, was a member of a group called "Caucasians in Effect" in middle school, court documents reveal. He carried a stun gun and a knife, "posted swastikas in public places and hated anyone who was not caucasian," the record says.

Oliver is charged with murder in Jordan's death, as well as four counts of aggravated assault by a public servant in the same shooting.

He also faces two counts of aggravated assault by a public servant for an unrelated road rage incident weeks before Jordan's death.

Initially, Balch Springs Police Chief Jonathan Haber said the Impala was aggressively reversing toward Oliver and Officer Tyler Gross.

Body camera footage contradicted that story. Oliver was fired and arrested on the murder charge in May.

He was indicted on the murder charge in July, which is rare for police shootings. After his indictment was announced, Dallas County District Attorney Faith Johnson said prosecuting Oliver is not a "political statement."

"Hopefully, it is a message we are sending to the bad police officers: 'If you do wrong, we will prosecute you,' " she said.

Jordan Edwards' stepmother Charmaine Edwards (center) and father Odell Edwards listen as Dallas County District Attorney Faith Johnson announces that a grand jury indicted fired Balch Springs officer Roy Oliver on a murder charge for Jordan's death and four additional charges of aggravated assault with a deadly weapon by a public servant. Edwards was killed April 29 in Balch Springs as a car in which he was riding drove away from Oliver and another officer. (Louis DeLuca / Staff Photographer)

The court filing also reveals a psychological exam that Oliver took in 2011 while applying for another law enforcement job showed he had an "elevated score" on the "risk-taking index."

"He may not care what others think of him or of his behavior," the exam found. "He may feel so insensitive to threat that his judgment may be impaired in evaluating the risk of danger."

The exam also found that "his sense of entitlement may be so strong that the possibility of his behaving in an antisocial manner must be considered," the court filing shows.

While Oliver testified in a jury trial in 2013, he was "uncooperative and used profanity," records show.

"I don't understand the [expletive] question. What was that again?" he said while testifying.

Earlier in April, Oliver allegedly pulled a gun on a woman and her friend after a minor car accident in Dallas. The woman's 13-year-old sister was also in the car at the time.

Though Dallas police responded to the road-rage incident, no charges were filed against Oliver until after Jordan's death.

"Had Dallas taken some action on that particular night when they knew that this officer placed a gun to someone's head, Jordan would be with us here today," said attorney Daryl Washington after Oliver was indicted on the murder charge.

Washington is one of the attorneys representing the Edwards family.

Oliver will tried on the murder charge first. The trial is set to begin Jan. 22. He faces up to life in prison for each of the seven felony charges against him.