Here's how the whole project is described:
"To write a conceivable chronicle of Heath Ledger's final days, writer Lisa Taddeo visited the actor's neighborhood, talked to the store owners and bartenders who may have seen him during his last week, and read as many accounts and rumors about the events surrounding his death as possible. She filled in the rest with her imagination. The result is what we call reported fiction. Some of the elements are true. (Ledger was in London. He was a regular at the Beatrice Inn and the Mirö Cafe. And he was infatuated with Nick Drake). Others are not."