Police say that a weapon discovered on the property of Michael McKee matches the one they believe was used to kill Monique and Spencer Tepe.

It is just one of the “multiple weapons” discovered by police during a search of McKee’s property, Columbus Police Chief Elaine Bryant alleged at a news conference on Wednesday, Jan. 14.

Bryant declined to share any additional details about the weapon or where it was discovered, saying that the investigation was still in the early stages and she did not want to jeopardize the case prosecutors are building against McKee.

The search occurred after McKee, 39, was arrested on Jan. 10 by federal agents with the Bureau of Alcohol, Tobacco, Firearms and Explosives near his medical office in Rockford, a city in Illinois located approximately 80 miles west of Chicago.

McKee was booked into the Winnebago County Jail to await extradition to Ohio on that day. Police said at the press conference that they were still working out the details of his transport back to Franklin County, Ohio, where he is expected to be arraigned on two counts of aggravated murder with premeditation in the deaths of his ex-wife Monique, 39, and her dentist husband Spencer, 37.

McKee was arrested almost two weeks after Monique and Spencer were killed inside their Columbus home on Dec. 30.

The couple was killed just days after their fifth wedding anniversary — and while their two children, ages 4 and 1, were asleep in their bedrooms.

An arrest warrant filed in Franklin County Court said that detectives were “able to identify a suspect through neighborhood video surveillance” and then track that person to a vehicle “which arrived just prior to the homicides and left shortly after the homicides.”

Bryant said on Wednesday that police also have evidence of McKee being in possession of that car both before and after he allegedly murdered his ex and her husband.

Police were able to track McKee’s vehicle down in Illinois, where he was taken into custody 450 miles away from the crime scene.

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McKee had been working at OSF Saint Anthony Medical Center at the time of his arrest, a job he took after leaving a previous position in Las Vegas and moving to Chicago.

Illinois state medical records show that McKee had been licensed to practice in the state starting in October 2024, and in July 2025, he purchased a penthouse apartment in Chicago for $400,000.

McKee has yet to speak publicly about his arrest, and remained silent during his first court appearance in Winnebago County Court on Jan. 12.

During that appearance, Winnebago County Assistant Public Defender Carrie Poirier informed the judge that her client would be invoking his Fifth Amendment right to remain silent.

She then said that McKee agreed to waive an extradition hearing in the case and intended to enter a plea of not guilty to both counts of aggravated murder with premeditation he is facing in Ohio.

McKee and Monique married in 2015 after meeting while attending Ohio State University.

They were divorced in 2017 after less than two years of marriage.