Australian TV personality and former model Charlotte Dawson was found dead in her Sydney waterfront apartment on Saturday morning.
The Herald Sun newspaper reported that the 47-year-old star left no note before taking her own life, which was minutes before her luxury apartment was due to be sold at an auction.
After a suicide attempt back in 2012 following an ongoing tirade of abuse on Twitter, it is believed her death had something to do with online bullying.
Police are now investigating her activity on Twitter and other social media sites to find any abusive messages she may have received.
Dawson, who left Australia’s Next Top Model in January, was also an anti-bullying activist and raised awareness for causes she fought for.
Her last tweet was on Feb. 20 in which she said, “We have the hospitals/resources & the doctors & professors willing to help. Where is the govt support?”
She earlier explained, “If the funding cuts that have prevented @SJaundrell cancer op don't turn up a positive result I will be very very angry.”
On Friday—the day her former husband Scott Miller celebrated his 39th birthday—she appeared on 60 Minutes discussing her hopes for the Olympic swimmer to make a recovery from addiction.
She received a nomination for Most Popular Television Presenter for TV Week's 56th Logie Awards, which takes places in April in Australia.