Adacia Chambers was charged with four counts of second-degree murder and 46 counts of felony assault as the primary suspect in the Oklahoma State University's (OSU) football homecoming parade crash.

On Oct. 24, Chambers drover her car past a barricade, over a police motorcycle, and into a crowd of people, killing four and injuring many more. Chambers, 25, has been held in jail on $1 million bond since, according to The Associated Press.

Chambers faces 10 years to life for each charge of second-degree murder, as well as up to five years per assault charge. In Oklahoma, second-degree murder occurs when the perpetrator puts others in danger, but does not plot out the attack.

While a judge ordered Chambers to undergo a psychological evaluation, her attorney, Tony Coleman, already had one conducted with a doctor he commissioned.

KOCO Oklahoma City reported forensic psychologist Shawn Roberson found Chambers shows "signs of severe mental illness which would impair her competency." Roberson also said Chambers exhibits behavior consistent with bi-polar disorder and would not be mentally fit for a trial.

Coleman previously appeared on the "Today" show and said Chambers was not under the influence of any substance, as the Stillwater Police initially suspected. But Police Capt. Kyle Gibbs stood by Chambers' DUI arrest and stated he is still waiting for blood test results.

"The suspicion was DUI, drugs from the get-go, and we're awaiting the test results to see if those support that charge," Gibbs told The AP. "Any DUI arrest is initially based on probable cause, based on observations of the driver, their actions, things like that."

Payne County District Attorney Laura Thomas stated Wednesday Chambers acted with intent during the crash, but would not speak any further about the case.

OSU held a memorial for the victims of the crash on Tuesday, Nov. 3 and later released a "Thank You" video for anyone who provided help and support.