Mary-Kate Olsen was the first person who was contacted after a masseuse discovered Heath Ledger's body on Tuesday. After trying to wake Heath, Diana Wolozin used Heath's cell phone to call Mary-Kate in California, because she knew the star was a friend of Heath's. Mary-Kate said she would call some private security people she knew in New York. Wolozin called Mary-Kate one more time before dialing 911. Emergency medical workers arrived at about the same time as Mary-Kate's private security guards. According to police, everyone present fully cooperated with the police.