It has been revealed today that Heath Ledger probably didn't die of a drugs overdose - as reported last week, but may have suffered a heart attack from natural causes.
Instead, it's being speculated that the late 28-year-old may have died of natural causes as he did not have enough drugs in his system to kill him. A heart attack hasn't been ruled out.
"It's now appearing that the level of toxicity in Ledger's system was low enough that it may not have caused his death. These
sources say Heath's heart stopped," reports TMZ.