"His use of downers - sleeping pills and anti-anxiety pills and antidepressants- was also getting heavier because he needed them to sleep.
The mystery surrounding Heath Ledger's death deepened yesterday, when it emerged that the actress Mary-Kate Olsen is refusing to co-operate with investigators trying to establish how the Dark Knight star got hold of the powerful painkillers that caused his accidental fatal overdose.
But now news comes that Heath and Mary-Kate may have been more than just friends.
Heath Ledger's drug use spiralled out of control before his death because he feared losing access to his two-year-old daughter, it was revealed.
According to the Times, Wolozin arrived for her appointment with Ledger around PM.
He told friends that Michelle, 27, planned to go to court claiming he was a bad influence on Matilda.Michelle Williams, who appeared with Ledger in Brokeback Mountain and is the mother of his daughter Matilda, also agreed to be interviewed by officials, according to the New York Post, which revealed details of Olsen's refusal to co-operate.At the time of his untimely death in January 2008, actor Heath Ledger was romantically involved -- in secret -- with Lindsay Lohan.In an exclusive interview with The Mail on Sunday, a member of the star's inner circle, Rebecca White, said Ledger believed his former fiancee Michelle Williams was about to serve legal papers demanding sole custody of their child, Matilda.Michelle ordered Ledger, 28, out of their New York mansion last autumn because of his drug problem --which is said to have included addiction to heroin and cocaine. But Ms White claims his dependence on drugs only intensified and he was unable to sleep without pills.