MAYFIELD HEIGHTS, Ohio -- A man was arrested Friday and charged Monday in the killing of a woman and her 8-year-old daughter in their Mayfield Heights home, police announced Monday.

Dominique Swopes, 27, is charged with two counts of aggravated murder and aggravated arson, Mayfield Heights police said in a press release.

Swopes lives on Longwood Avenue next door to the home that was set ablaze Nov. 20 after 41-year-old Rebecca Pletnewski was strangled and stabbed to death. Pletnewski died of cervical compression with sharp force injuries and her death was ruled a homicide, the Cuyahoga County Medical Examiner’s Office said.

Pletnewski’s 8-year-old daughter, Olivia Schneider, died from smoke inhalation after she was taken to Hillcrest Hospital, the medical examiner’s office said. Her death was also ruled a homicide.

Investigators suspected arson because a K-9 officer detected an unidentified accelerant in the house, the fire department said previously. Samples pulled from the home are being sent to the Ohio Bureau of Criminal Investigation for testing.

Swopes was initially brought in for questioning on Nov. 20 but was released that evening.

Detectives investigated and collected “incriminating evidence” against Swopes, police said, but declined to elaborate.

Swopes was arrested Friday without incident and charges were filed Monday in Lyndhurst Municipal Court, police said.

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