Four people, believed to be connected to the drugs found in Philip Seymour Hoffman's Manhattan apartment, have been taken in for questioning by the New York police, according to CNN.
On Sunday, February 2, police were called to Hoffman's apartment where they found the late-actor's body in the bathroom. According to law enforcement sources, Hoffman had a syringe in his arm.
Police on the scene discovered 50 envelopes, filled with heroin, and several empty containers that police believed had previously held the narcotic.
This discovery led to a city-wide search for the dealers responsible for selling Hoffman the drugs. The four people being questioned were found during that investigation.
Days before Hoffman's death, police in Maryland revealed that a bad batch of heroin, tainted with another powerful narcotic called fentanyl, had killed 37 people since September. Twenty-two people in Pennsylvania died from fentanyl-tainted heroin last month.
Some speculated that Hoffman could have died from the same tainted heroin. However preliminary tests showed that the heroin found in his apartment did not contain the deadly additive. More thorough testing will be conducted.