Michael McKee's attorney pleaded not guilty on his behalf Friday afternoon.

McKee is the Illinois surgeon accused of killing his ex-wife and her husband in their Weinland Park home last month.

Monique and Spencer Tepe were found shot to death on Dec. 30; their two young children were found unharmed inside the home.

McKee, 39, was extradited to Ohio on Tuesday after spending 10 days in an Illinois county jail.

Columbus police reported that McKee was captured on security camera footage near the Tepes' home around the time of the murders.

Investigators tracked McKee's car from the crime scene to Rockford, Ill., where he worked as a vascular surgeon. A gun linked to the homicides was discovered in McKee's Chicago condo, according to police.

"We can’t speak to all details related to this case; we don’t want to jeopardize the ultimate goal of conviction," Columbus Police Chief Elaine Bryant said last week. "We can say this was a targeted attack."

McKee was arrested on Jan. 10 at a Chick-fil-A restaurant in Rockford, Ill., not far from his workplace.

A Franklin County grand jury indicted McKee last week on charges of aggravated burglary and four counts of aggravated murder. The indictment states a silencer was used in the shootings.

McKee and Monique were married in 2015, but the marriage lasted less than two years after Monique filed for divorce.

"We just want justice," said Rob Misleh, the victim's brother-in-law. "We want this person that took so much from not just this family, but so many more people, obviously the kids, we want this person to pay for what they did."

McKee has hired well-known Columbus defense attorney Diane Menashe, who previously represented Dr. William Husel, found not guilty of 14 murders in 2022 related to overprescribing fentanyl to critically ill patients.

Menashe had no comment on McKee's case.

Franklin County Prosecutor Shayla Favor, who has never tried a criminal case, will be one of three attorneys prosecuting McKee.