His lawyer Ashkan Mehryari, confirmed the death to Newsbeat, saying the artist, real name Dashawn Robertson, had taken his own life.
The official cause of death has not been confirmed by the medical examiner.
The Dallas rapper was arrested in 2020 on a murder charge in connection with the shooting of 18-year-old Khalil Walker. In February he was reportedly indicted on a lesser charge of manslaughter.
