LOUISVILLE, Ky. (WDRB) -- The man charged with murder in connection to a fatal shooting on I-71 southbound in February has been ordered to undergo a mental health evaluation to determine if he is competent to stand trial.

Jefferson Circuit Court Judge Audra Eckerle on Tuesday ordered that the Kentucky Correctional Psychiatric Center evaluate Christopher Lee McCullum and report back to the court on his mental condition.

Eckerle set a competency hearing for Oct. 5, in which the evaluating physician will be called to testify.

Neither the prosecutor in the case nor an attorney for McCullum, who requested the mental health evaluation, immediately returned phone calls seeking comment.  

McCullum has a history of mental illness and substance abuse and had previously been arrested carrying four loaded handguns, two rifles and a crossbow, according to court records.

He is now accused of shooting and killing Mukhtar Ahmad on Feb. 25 in what police call a "road rage" shooting on southbound I-71, near the Gene Snyder Freeway.

Friends told WDRB the 41-year-old father of three was a hard worker who came to Louisville from Pakistan with his brother in 2000. They own a Dairy Mart in west Louisville. 

McCullum has pleaded not guilty to charges of murder and wanton endangerment.

A witness who said he saw the shooting told police he was traveling southbound on I-71 when he noticed the driver of a white van yell at the driver of a black vehicle and then veer towards that car.

Witness Bruno Azevedo said the man in the white van stuck a gun out his window and fired multiple shots at the other vehicle. The black vehicle continued driving and the white van pulled up alongside and fired a second round of gunshots, Azvedo told police, according to a summary of his interview.

After the second round of shooting, the black vehicle drove slowly into the median and hit a railing, Azvedo said.

Ahmad was pronounced dead at the scene of a single gunshot wound to his right side. His vehicle, a black Lexus SUV, had several bullet holes in it.

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