Tests are underway to see if drugs or alcohol played a role in the death of singer Marie Osmond's adopted son, who fell to his death from an apartment.
Michael Blosil (18) left a suicide note before he leapt from the eighth floor of the building, said police in Los Angeles.
Toxicology tests could take up to two months, said Los Angeles County assistant chief coroner Ed Winter.
"He fell to his death from a balcony, eight storeys," Mr Winter said, but officials "just want to make sure that he wasn't drunk or something and walked out of his balcony and fell".
Mr Blosil was a first-year student at the Fashion Institute of Design & Merchandising, said college spokeswoman Shirley Wilson. Mr Blosil and other students lived at the Metropolitan apartments in Flower Street, Ms Wilson said.
The complex, known as "The Met", has a 24-hour doorman and a balcony for every apartment, along with a spa, pool and other luxuries.
There have been conflicting reports about whether Mr Blosil may have struggled with depression.
Marie Osmond, pictured left, revealed in 2007 that her son had entered rehab but did not say what he was being treated for. "He's dealing with a lot of issues," she said at the time. Osmond said one of the issues troubling him was the fact that he was adopted.
Osmond (50) has herself struggled with depression over the years.