Three Butler County residents are linked to an attempted home invasion in Allegheny County, during which one of the suspects allegedly identified himself as a police officer.

But investigators say the trio picked the victim's home by mistake and they never gained entry.

Scott Township police arrested Kelsey B. Carter, 26, of Prospect and Ryan Muma, 23, of Portersville on Thursday in the Feb. 20 burglary of an occupied home in the township that is about three miles south of Pittsburgh.

The suspects were arraigned on attempted robbery and conspiracy charges, and they are in the Allegheny County Jail on $25,000 bail.

Police said Dawn R. Eckert, 40, of Marion Township is also suspected and facing similar charges.

Eckert is in the Butler County Prison on $100,000 bail after Slippery Rock police arrested her Wednesday on felony drug charges.

Eckert's arrest, authorities said, occurred after Scott Township police tracked her car, which was believed to have been involved in the attempted home invasion, to an apartment in Slippery Rock.

Scott police had been looking for the car, which was captured on surveillance video at the time of the alleged Feb. 20 crime that began shortly after noon when a man appeared at a home on Carothers Avenue and began pounding on the door.

In the home was a woman in her 30s and at least two children, Scott Township police Sgt. Jeff Skees said Thursday.

Police said when the occupants asked who was at the door, the man, believed to be Muma, allegedly shouted “police.”

He also allegedly tried to kick in the door and use a large knife to try to pry it open.

But as it turned out, the suspects did not know any of the occupants because they had gone to the wrong house. Skees described it as a case of “mistaken identity.”

The woman at the home called 911. Police said they were there in a few minutes, but by then the suspects had fled in the car, which was captured on surveillance footage.

The car was a white Chevrolet Cruze with front-end damage and it was missing a hubcap. Authorities believe that it belongs to Eckert.

Investigators eventually tracked the vehicle to an apartment on Spruce Drive in Slippery Rock. Borough police were notified.

Eckert was identified as the driver and Dustin J. Cunning, 31, of Connoquenessing Township as a passenger.

Riding in the back seat, Slippery Rock police said, was Eckert's 3-year-old son, who was not secured in a child safety seat. In a pill bottle on the car floor were 87 glassine bags of suspected heroin marked “Life is Beautiful,” police said. According to borough police, officers also found Cunning with two similar bags.

During an interview at the borough police station, Eckert claimed the alleged heroin belonged to her and Cunning.

“Eckert stated she is the one who paid for the heroin and Cunning was the one selling it,” according to Slippery Rock police officer Nicholas Graham's affidavit.

But in his interview, Cunning claimed Eckert was selling the drugs, police said.

Slippery Rock police arrested Eckert and Cunning on felony charges of possession with intent to deliver a controlled substance and conspiracy, and misdemeanor charges of child endangerment and possession of a controlled substance.

Cunning, like his co-defendant, is in the county prison on $100,000 bail.

Skees said Carter and Muma were both arrested Thursday in Prospect in connection with the attempted home invasion.

He would not say if Eckert, Carter or Muma provided statements to investigators.

“When presented with the overwhelming evidence against them,” Skees said, “they did not deny their involvement.”

He would not elaborate.