building, two of them were already dead, police say it appears all the victims went to an event together where they were given orange wristbands and went to private residents where they all took narcotics at the same time, no concerns the drugs were distributed at the venue, police are concerned of deadly batch of drugs circulating in the community. police have not said what kind of narcotics the victims took, dr. michael pathologist and say fentanyl is a common killer. >> many times the person does not know that it's in the mixture that they purchase as usual from -- from a drug dealer, but now it's been added without them knowing it. >> local media is reporting the victims are all men in their 40's and 50's and the complex where it happened south side work city apartments is a nicer building with several amenities like a pool and roof deck with cabanas, pittsburgh