A pivotal lead has resulted in the arrest of a Chicago physician, charged with the murders of his former spouse and her husband, a dentist, in Ohio.

Authorities apprehended Michael David McKee, 39, in relation to the deaths of Spencer Tepe, 37, and Monique Tepe, 39. The couple was discovered deceased in their Weinland Park residence at around 10 a.m. on December 30, according to officials.

McKee’s capture occurred in the Chicago vicinity after investigators utilized neighborhood surveillance footage near the Tepes’ home to trace his vehicle, as revealed by court documents.

The documents indicate that McKee’s car was recorded arriving shortly before the murders and departing shortly afterward. Detectives successfully identified the vehicle and connected it to McKee.

Michael David McKee, a resident of Chicago aged 39, now faces two murder charges for the killings of Dr. Spencer Tepe and his wife, Monique Tepe.

Detectives tracked the vehicle to Rockford, Illinois, where they discovered evidence confirming that McKee maintained possession of the car during the critical timeframe, as detailed in the documents.

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 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 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.