Feldman, who appeared on Larry King Live Wednesday night, said Haim was "very destitute, very broke," had no car and few friends.
"At the end of the day, Larry, where were all these people the last 10 years, the last 15 years of Corey's life?" asked Feldman, also 38. "Where were all these people to lend a hand out, to reach out to him and say, you know, you're a legend, you're – you're an amazingly talented, wonderful person who's really never gone out of his way to hurt anybody other than himself?"
Feldman also said Haim was recently seeing a new treatment specialist who put him on a new line of medications. Feldman did not specify which they were, but said, "Let's just say that they may not have corresponded properly with the medications that he was currently taking."
However, Feldman had noticed a marked shift in his friend since his mother, with whom Haim was living in a month-to-month rental property, was diagnosed with cancer. "He shaped up. He got his act together," Feldman said. "When his mom got ill, it was the first time I ever saw Corey grow up."
Feldman said "a sizeable memorial" will be planned for Haim – which he hopes will be well-attended. "You see these people making great statements and that's wonderful and I hope they're all there for the memorial and I hope they're all there for the funeral. But where were they during his life?"