Marie Osmond's 18-year-old son did not have drugs in his system when he jumped from a Los Angeles apartment balcony to his death in February, his autopsy revealed.

Michael Bryan's death was ruled a suicide in the autopsy report released Wednesday by the Los Angeles County Coroner.

Bryan suffered "multiple blunt trauma" when he "jumped from height" on February 28, the coroner wrote.

"The toxicology report was completely negative," the autopsy report said.