Nick Gordon stormed off the Dr. Phil programme and promptly checked into rehab after MCGraw attempted to stage an intervention during a previous chat with the troubled 20-year-old.

Now clean and sober, Gordon fought back tears as he attempted to answer tough questions about his involvement in the death of his girlfriend, the only child of Bobby Brown and the late Whitney Houston.

In one teaser clip for the interview, which will air on Dr. Phil on 28 April (16), MCGraw asks his guest, "Did you murder Bobbi Kristina Brown?"

The tragic singer and actress was found face down and unresponsive at the home she and Gordon shared near Atlanta, Georgia on 31 January, 2015. She was admitted to a nearby hospital and spent months comatose and fighting for life until she passed away in July (15).

Bobbi Kristina's court-appointed co-conservator Bedelia Hargrove has blamed Gordon for her death but an autopsy report released on 4 March (16) found no evidence to suggest he was involved.

Last month (Mar16), Gordon's lawyers declared "no one has suffered more" from Bobbi Kristina's death than her boyfriend.

They issued a detailed statement which read: "Nick Gordon's life has been tumultuous since January of 2015 when he lost the love of his life. On top of being prohibited from visiting Bobbi Kristina at the hospital for the last six months of her life, Nick has been publicly humiliated for more than a year.

"Throughout that time, the Fulton County District Attorney's office has tried to make Nick a murderer despite having clear and convincing evidence that Bobbi Kristina's death was nothing more than a tragic accident, evidence that the District Attorney's office fought to seal and conceal from the public rather than allowing her fans to know the truth.

"The truth is that Nick tried to save Bobbi Kristina's life. The truth is that Nick cooperated with law enforcement since day one. The truth is that no one loved Bobbi Kristina more than Nick and no one has suffered more as a result of her death than Nick."