CHICAGO -- Marie Osmond says her son suffered from depression and had struggled with drugs before his suicide eight months ago.

During an interview on the episode of "The Oprah Winfrey Show" that aired Thursday, Osmond says her son, Michael Bryan, didn't show his depression.

She says he had a difficult childhood and started to use drugs when he was about 12, but that he wasn't using drugs at the time of his death.

The 18-year-old college student jumped from the eighth floor of an apartment building in Los Angeles in February. The coroner ruled the death a suicide