His sister, Leila, was found dead in a London hotel room in 2001 after taking an overdose of barbiturates.
From 1999-2008, the U.S. saw a 300 percent increase in overdose death from painkillers, with close to 15,000 deaths in 2008 alone.
She had taken an overdose of barbiturates, whether deliberately or accidentally it was impossible to tell.
overdose o·ver·dose (ō'vər-dōs')
An excessive dose, especially of a narcotic.