A man who faces murder charges for killing his older brother and ex-girlfriend was in court Friday and was declared incompetent to stand trial due to mental illness.

Justin Slater is charged with capital murder for the June deaths of his brother, Gregory Scott Slater Jr. in Frederick County and his ex-girlfriend, Kayleigh Plamondon, in Clarke County.

Prosecutors from three different jurisdictions submitted a motion to withdraw its demand for a competency hearing. The motion was made based on two recent events involving the murder suspect.

One of those events was Slater's alleged attempt to escape police custody at the Winchester Medical Center. He was charged in that incident.

The second event was Slater's return to the medical center last week after he was hurt at the Northwestern Regional Adult Detention Center. He was then taken to Central State Hospital for treatment and is taking medications for mental illness.

On Friday, Slater will be taken back to Central State Hospital and he will not stand trial until he is found competent. He will remain at the hospital while he continues to get mental evaluations.

Slater was scheduled for trial December 2 in Frederick County for the murder of his brother. The court will now use that date to review his mental status.

During Friday's court proceeding, Slater was seen making eye contact with Plamondon's family and emotionally mouthing "I'm sorry."

Slater may stand trial at a later date if he is found competent in the future.