DALLAS (CBSDFW.COM) – The City of Dallas is set to pay a record $725,000 to a private law firm to defend a former Dallas police officer who pleaded guilty in May to shooting an unarmed man in 2013.

On Wednesday, city council approved an additional $150,000 to be spent on legal fees in connection the civil lawsuit filed by Kelvion Walker against former Dallas police officer Amy Wilburn.

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Amy Wilburn

The city has already paid the private law firm of Fanning Harper Martinson Brandt & Kutchin PC more a half million dollars to work the civil case.

According to city records, this is the most the city has ever spent on outside legal fees for a single officer misconduct case.

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Trial in the civil lawsuit is schedule for February – more than five years after the shooting.

In 2014, Wilburn became the first Dallas police officer to be indicted for shooting a suspect in more than four decades.

In May, she pleaded guilty to a reduced misdemeanor charge of reckless discharge of a firearm and received 18 months of deferred probation.

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Kelvion Walker after surgery

Walker, who was shot in the stomach, has had three major surgeries and racked up more than $300,000 in medical bills, according to his attorney Geoff Henley.  Walker is seeking reimbursement for his medical bills along with damages in his civil suit.