Fairmount Park murders: 2nd suspect arrested in 'execution style' murders in Philadelphia park

Authorities say a woman has been arrested in the "execution style" murders of two people in Fairmount Park. 

The Philadelphia Police Department on Wednesday reported that the unnamed woman surrendered to police. 

It's the second arrest in the gruesome double murder that police say happened overnight on Feb. 29. 

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Fairmount Park murder victims identified after police say they were shot 'execution style'

Police have identified the man and woman who were found fatally shot on the side of the road in Philadelphia's Fairmount Park late Thursday night.

Police found the bodies of Thurston Cooper, 49, and Krystina Chambers, 38, near three shell casings on Mount Pleasant Drive.

Police arrested a man in connection to the murders days later, and recovered a car they believe is linked to the killings.

Investigators have not shared a possible motive.