Marilyn Mosby is asking a judge to order a separate trial for two of the six officers charged in connection with the killing of Freddie Gray.

The Associated Press reports in a motion filed late last week, the Baltimore State's Attorney requested patrolman William Porter and Lt. Brian Rice be trialed separately from the other four officers already indicted. Each of the two officers are charged with reckless endangerment, misconduct in office, second-degree assault and manslaughter, which is a felony.

In her petition, Mosby did not provide an explanation for her strategy. Fellow officer Alicia White faces the exact same charges as the two officers signaled out, while Caesar Goodson faces those charges and a "depraved-heart" murder count. Officers Garrett Miller and Edward Nero only face misdemeanor charges.

The 25-year-old Gray died in April from injuries he suffered while in police custody, leading to protests and some violence all across the city. Earlier this month, the Baltimore Sun reported an autopsy concludes Gray died of a "high-energy injury" to his neck and spine that was most likely caused when the police van in which he was riding suddenly decelerated.

The state medical examiner's office concluded that Gray's death could not be ruled an accident and was instead a homicide, because officers failed to follow safety procedures "through acts of omission" after taking him into custody and placing him in the police van.

The medical examiner compared Gray's injury to those seen in shallow-water diving incidents.

According to The Sun, the autopsy report was completed on April 30, a day before Mosby made her since much dissected decision to criminally charge the officers involved.

In ruling the death a homicide, Assistant Medical Examiner Carol H. Allan noted it was "not an unforeseen event that a vulnerable individual was injured during operation of the vehicle, and that without prompt medical attention, the injury would prove fatal."