According to thesun.co.uk, Debbie will also tell that she saw pictures of Jackson leaving Klein's office just days before he died in June 2009.
After the singer's death, Debbie called up Klein and said: "What the f*** did you give him? He's dead and it's your fault."
Debbie was married to Jackson for three years, before parting ways in 1999. She had two children – Prince and Paris – with Jackson.