Investigators followed a critical clue that led to the arrest of the Chicago doctor suspected in the killings of his ex-wife and her dentist husband in Ohio.

Michael David McKee, 39, was arrested in connection with the double murder of Spencer Tepe, 37, and Monique Tepe, 39, who were found dead at their Weinland Park home around 10 a.m. Dec. 30, officials have said.

McKee was arrested in the Chicago area after detectives tracked his vehicle through neighborhood surveillance near the couple’s home, according to court documents.

McKee’s car “arrived just prior to the homicides and left shortly after,” detectives said in the court documents. Investigators were able to identify the vehicle and subsequently link it to McKee.

Mugshot of David Mckee.

Michael David McKee, a 39-year-old from Chicago, is charged with two counts of murder in the deaths of Dr. Spencer Tepe and his wife, Monique Tepe. (Winnebago County Sheriff’s Office)

Detectives said they located the car in Rockford, Illinois, noting that they found evidence that McKee had been in ownership of the vehicle throughout the incident, the documents stated.

McKee was booked at the Winnebago County Sheriff’s Office in Illinois just before noon Saturday, records show. He’s being charged with two counts of murder in Ohio.

Spencer and Monique Tepe on wedding day

Spencer and Monique Tepe are pictured on their wedding day. (Rob Misleh)

McKee’s neighbor, Gera-Lind Kolarik, told WLS-TV after his arrest that “he did not seem like somebody who would do something like this.”

“I sat down with this man and talked with him at the pool, barbecuing, about what a beautiful day it is — and then he turns out to be [charged as] a killer,” she said. “It’s kind of shocking.”

Spencer and Monique Tepe outside

Spencer and Monique Tepe were found dead on Dec. 30. (Rob Misleh)

Detectives in Columbus believe the murders took place between 2 a.m. and 5 a.m. Dec. 30. The bodies were discovered after one of the Tepe’s friends went to the couple’s house and told a 911 operator he could see a body inside.

Both of the couple’s children were found safe inside the home when officers arrived. Police didn’t find signs of forced entry, and a weapon was not recovered from the home, officials said.

Mourners at Schoedinger Funeral Home in Columbus, Ohio

Mourners arrive on Jan. 11, 2026, at Schoedinger Funeral Home in Columbus, Ohio, as several hundred people turned out to pay their respects to the family of Spencer and Monique Tepe. (Credit: Derek Shook Photography)

Visitation for the couple on Sunday drew an outpouring of community support despite cold weather.

At Schoedinger Funeral Home, where temperatures hovered around 30 degrees with occasional snow flurries, mourners began arriving shortly after the noon visitation opened.

Several hundred people turned out over the course of the afternoon, filling the main parking area and forcing others to park in an adjacent hospital clinic lot and a nearby strip mall as a steady stream of visitors continued to arrive.