"Devastated. Please hold your loved ones tight. Tell them they are special and that you love them. Make sure they know it. RIP to my boo @sirtruss," they wrote on their Instagram Story at the time. "Addiction is NO joke.. heaven gained this beautiful angel last night because of that terrible disease. I'm crushed and will always miss you @sirtruss. If you or someone you know is struggling please know it's okay to ask for help."
Lovato has been open about their own battle with addiction. In their YouTube docuseries Dancing With the Devil, Lovato revealed the struggles they faced after their 2018 overdose.
"I had three strokes. I had a heart attack. I suffered brain damage from the strokes," Lovato said. "I can't drive anymore. I have blind spots in my vision."