As part of the investigation into the too-soon death of actor Philip Seymour Hoffman, the NYPD arrested four people in Manhattan on Tuesday.

Three men and one woman were taken into custody after being found with more than 350 bags of heroin. None of the bags had an Ace of Spades or Ace of Hearts design on them, as some of the more than 70 found with Hoffman at the time of his death did.

TMZ reports that 3 separate units in a lower Manhattan apartment building had been raided. On the Saturday night before his death, according to the New York Daily News, Hoffman "made six withdrawals totaling $1,200 from the ATM at a D'Agostino's on Greenwich St."

Earlier in the day, investigators also found that the heroin on which Hoffman overdosed did not contain fentanyl, as had been rumored. That chemical had been found in heroin related to 22 deaths in Pennsylvania.