Cooper Noriega, a TikTok star aged 19, died on Thursday.

According to the Los Angeles County Medical Examiner and Coroner’s Office, Noriega was found dead in Burbank at 4:20 PM on the 500 block North First Street.

The cause of death is unknown and the case remains under investigation.

He posted a video of Noriega hours before his death on TikTok, where he wrote: “Who else b thinking that they gon d!”

Noriega was open about his struggle with addiction and mental health on social media.

Noriega shared a TikTok clip on June 5 announcing that the group he was creating to discuss their experiences with mental illness on Discord, a messaging site.

Noriega states in the video that she created Discord to support her mental health. She says this because of how much she loves you and how hard it is for me.