UPDATE (Wednesday, Nov. 21, 2018): Police are still investigating the murder of four people, two men and two women, whose bodies were found Monday afternoon in the basement of a residence on the 5100 block of Malcolm Street in Cedar Park. All four were shot once in the head, according to police. The male victims, 28 and 31 years old, are reportedly cousins. One of the female victims is 20 years old, according to police. No names and no suspect information have been released as of 11 p.m. on Tuesday, Nov. 20. Philadelphia Police Captain Derrick Wood tweeted shortly after the discovery of the victims that “it [was] the worst crime scene I have seen in my 20 years with the Philadelphia Police Department”: 

https://twitter.com/PPDDerrickWood/status/1064613874366861314?ref_src=twsrc%5Etfw%7Ctwcamp%5Etweetembed%7Ctwterm%5E1064613874366861314&ref_url=https%3A%2F%2F6abc.com%2Fcousins-2-women-found-executed-in-sw-philadelphia-home%2F4719910%2F

[Monday, Nov. 19, 5:26 p.m.]: Police are investigating the murder of four people, two men and two women, who were found in a Cedar Park home on Monday. Police found the four bodies in the basement of a residence on the 5100 block of Malcolm Street, according to reports. All the victims had gunshot wounds to the head, and police believe they were led into the basement before they were shot. The victims, who are in their 20s or 30s, were not bound, according to police.

The house were the victims were found is undergoing renovation. It was purchased for $3 in 2009, according to a report by Philly.com.

It is not clear how long the bodies were in the basement, but a neighbor reported hearing a couple of bangs coming from the building on Sunday night, according to the report.

Police are currently looking for witnesses and surveillance video from the area.