The family of the late director John Singleton has reportedly hired a private investigator to look into the suspicions around his death this past April. The family claims that there is an unaccounted amount of time leading up to Singleton admitting himself to the hospital. From the available information, there was no one in his family that took him to the hospital on April 17 nor did he drive himself. The family also noted that there are no Uber or Lyft receipts either. 

Singleton's family is hoping the P.I. can help answer questions like, who the late director was in communication with prior to going to the hospital, what he was doing prior to being admitted to the hospital, and did anyone know how bad his health was at the time. 

Source: tmz.com