TMZ reported that Miller, whose full name is Malcolm James McCormick, was found Friday around noon at his home in the San Fernando Valley of Los Angeles.
Miller was 26 years old.
The rapper first rose to prominence as a teenager in Pittsburgh with a series of mixtapes released in the mid and late 2000s. As his career progressed, critics noted an expansion in Miller’s approach to music to include more singing, more serious themes and dark, dense production. He also became a noted record producer under the name “Larry Fisherman.”
Miller’s struggles with substance abuse were a frequent topic of his music and tabloid reports on his relationship with singer Ariana Grande, which ended earlier this year.
Fellow Pittsburgh rapper Wiz Khalifa and other sent their thoughts to Miller and his family shortly after the news broke Friday.