TikTok mourns the passing of a rising star.

Social media personalities Cooper NoriegaCelebHomes News obtained a file from a coroner that shows that he had died at age 19 on June 9. The cause of his death is still unknown.

According to TMZ (who cited law enforcement resources), a passerby called 911 after finding TikTok’s star asleep in a Los Angeles shopping mall lot. The young TikTok star was not revived by paramedics who arrived quickly.

TMZ reported that there is no suspicion of foul play and will perform an autopsy.

Cooper sent a cryptic note to his followers on TikTok just hours before he died. While laying in bed, he wrote, “Who else b thinking they gon d!€ young af.”

Cooper expressed earlier this week his desire to have a conversation about mental health in a safe community. Cooper also shared his struggle with addiction, which he began when he was nine years old.