My Cathriona is dead. What am I going to do?' Mother of Jim Carrey's ex-girlfriend, 28, reveals her heartbreak after she was found dead in suspected suicide

Police discovered Cathriona White's body when they were called to her home in Los Angeles on Monday night 

Two friends of the Irish make-up artist reportedly first found the body when they went to check up on her at the $1.1million home

White is thought to have left behind a letter, saying she had broken up with comedian Jim Carrey, 53, for a second time last Thursday

That day, September 24, she wrote a worrying message on Twitter, saying she was 'signing off' from the social media site 

It's believed that White died from a drug overdose - as pills were found near her body 

Carrey issued a statement on Tuesday saying he was 'shocked and deeply saddened' by the passing of his 'sweet Cathriona'