Scott's body was discovered in her Manhattan apartment by her assistant on Monday morning.Officials working for New York City's medical examiner have determined she died by hanging.Jagger was in Australia preparing for a Rolling Stones concert when the news of Scott's death broke.He released a statement on Tuesday explaining he was "still struggling to understand" why his girlfriend took her own life.Reports suggest Scott had hit hard times financially and was planning to close her namesake company after cancelling an upcoming London Fashion Week show due to production delays.Following Scott's death, tributes from the world of fashion and showbusiness flooded on to Twitter.Bianca Jagger, one of Sir Mick's former loves, tweeted: "Heartbroken to learn of the loss of the lovely and talented L'Wren Scott. My thoughts and prayers are with her family. May she rest in peace."Fashion designer Marc Jacobs wrote: "Rest in peace, L'Wren Scott. You'll forever be missed."Model Daisy Lowe tweeted: "What a loss to the world. Such an inspired woman. She dressed the feminine form unlike any other."