LAS VEGAS HEADLINER: Gans' death ruled accidental.

Impressionist Danny Gans' death last month was caused by a combination of heart and blood diseases and a powerful prescription painkiller used to treat chronic pain, the Clark County coroner said Tuesday.

The death was ruled accidental.

"Mr. Gans' health conditions placed him at greater risk for heart irregularities, and the hydromorphone was a factor that exacerbated those risks," Coroner Mike Murphy said at a news conference.

The official cause of death was acute hydromorphone toxicity because of chronic pain syndrome. Hydromorphone is a strong synthetic opioid commonly known as Dilaudid.