New York police commissioner Raymond Kelly said Sunday that there are no plans to grill Mary-Kate Olsen on Heath Ledger's death. Perhaps the starlet's nonchalance has thrown cops from the trail? Last week, Olsen was seen "grieving" about town, hitting up various New York bars and club with her hipster pals and sucking face with artist Nate Lowman.

It will be another six or seven days until Ledger's toxicology report is complete. TMZ reports that people connected with the investigation say that levels of toxicity in Ledger's system seem low enough to suggest he may have died from natural causes. A fireman who was on the scene Tuesday says that Ledger appeared to have been dead for three hours when they arrived around 3:30 p.m., refuting the housekeeper's claim that she heard him snoring around 1:00 p.m. What's more, Australia's Daily Herald Sun reports that Ledger's body was still warm when found.

After a small viewing on Friday in New York, Ledger's body was flown to Los Angeles for a private memorial service on Saturday night. Close friends and family paid their final respects at the Pierce Brothers Westwood Village Memorial Park and Mortuary. Michelle Williams and Naomi Watts were among those in attendance.

Hollywood honored Heath at the SAG awards Sunday night. Best actor winner Daniel Day-Lewis dedicated his award to Ledger, saying "In Brokeback Mountain he was unique. He was perfect. That scene in the trailer in the end of the film is as moving as anything I think I've ever ever seen." Brad Renfro was also honored in a montage of actors who passed this year. Ever the classy crew, anti-gay protesters picketed outside the awards over Ledger's role in Brokeback Mountain.

Ledger's body was flown to Australia on Sunday, where his final rites will take place in his hometown of Perth.