Police Responding to Calls About Slain Ohio Dentist and Wife Initially Went to Wrong Address By Samira Asma-Sadeque and Chris Spargo

Police responding to requests for a welfare check on slain Ohio couple Monique and Spencer Tepe initially went to the wrong address on Dec. 30, per local law enforcement.

Monique, 39, and Spencer, 37, were found dead inside their home after Spencer’s co-workers and a friend made several 911 calls for a welfare check on the couple.

They grew concerned when Spencer did not show up for work and after one co-worker had tried in vain to contact him for three hours, per 911 call recordings obtained by PEOPLE.

The couple’s two children were found physically unharmed. A friend who previously called 911 from outside the residence told dispatchers he could hear the children, ages 4 and 1, crying inside.

Columbus police initially said officers responded to the residence and knocked multiple times, but left without getting an answer.

However, Columbus police now tell PEOPLE that officers conducting the first welfare check around 9:22 a.m. had gone to the wrong address.

The information was first reported by The Columbus Dispatch.

In separate 911 call records obtained by PEOPLE, two of Spencer’s co-workers and a friend are heard expressing their concern over couple not responding to their calls.

In one of the calls, made by Spencer’s friend, the dispatcher is heard telling him that they’d already sent someone to the Tepe residence.

“We had a call out there, they knocked there multiple times and there was no answer,” the dispatcher told the friend, who sounded concerned.

“Yeah, no answer, I can hear kids inside and I swear I think I heard one yell,” the friend responds, “but we can’t get in at this point. I don’t know if I need to break the door in.”

Police also confirmed to PEOPLE that a “domestic dispute” 911 call from April, traced to the Tepes’ address, was not made by Monique

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Information remains scarce in the case more than a week into the investigation.

Police have yet to name a person of interest in the case.

On Jan. 5, Columbus police released security footage of a person of interest walking in an alleyway near the couple’s home during the timeframe police believe the killings occurred.