Emergency crews responded to a home where a young person had overdosed on heroin.
Unfortunately the scene has played out with alarming frequency over the last couple of weeks in Northern Westchester.
22-year-old Thomas Plant was also in the room and also dead of an apparent overdose.
Experts say there are often shifts in drugs of preference.
Westchester County Police are now involved in the investigation which started even before the Yorktown deaths.
Last week, two men in their 20's overdosed in Croton.
One died, the other was hospitalized.
Police are trying to determine if the heroin was concentrated, or whether it was cut or diluted with a hazardous substance.
Experts say it's just some of the many risks when dealing the drug.
Drug experts say another troubling factor is that heroin is cheap and often more accessible to young people than prescription drugs, which is what teens often experiment with first.
Also, signs of heroin abuse are often harder for parents to detect than other drugs.