After White failed to answer the door when they knocked, the friends entered the backyard through an unlocked side gate.
White's friend Dennis Bradshaw told officers that he was able to see that the inside of the house looked dark and that the alarm was not on.
"He went inside and began looking for White and calling out her name," states the report. "He then found her in a back bedroom in her bed, and at first, though she might be sleeping. However, she was unresponsive to his calling out her name and he then got closer and realized she was deceased."
Once the rest of the friends entered the house and saw her body, they found White's phone and used it to call Carrey and inform him of her death. They then called 911.
White's friends had last heard from her on Sept. 23. On September 24, she wrote that she was "signing off" Twitter and briefly Facetimed Carrey around 10am. On September 27, Carrey sent White a text message asking about his prescription medication. The text went unanswered, according to the autopsy report.
Her body was not found until September 28.
White, who was from Ireland, and Carrey, 53, first met on a film set in 2012, but their relationship was on and off. Bradshaw told officers that she was normally happy and upbeat, but was prone to get "really down." He said that White had mentioned missing her family in Ireland, but added that she was "madly in love with Jim" and called their relationship a "rollercoaster."
At the time of her death, White was found with a suicide note addressed to the actor.
"I've spent 3 days now in disbelief that you're not here. I can go on brokenhearted and try to put the pieces back. I could, I just don't have the will this time," she wrote in a note found by police. She added, "I'm sorry you felt I wasn't there for you. I tried to give you my best part."
The toxicology report confirms that the death was a suicide and that White had a variety of prescription pills in her system at the time of her death, including propranolol (a beta blocker used to treat high blood pressure), zolpidem (a sleep aid sold as Ambien), and painkillers oxycodone and oxymorphone.