Bobby Kristina's aunt claims Nick Gordon under investigation for her attempted murder

Bobby Brown's sister Leolah Brown has claimed that Nick Gordon under investigation for attempted murder of Bobbi Kristina Brown.

Leolah made the allegations in an open letter to Dr. Phil recently, just days after Gordon had a staged intervention with the psychiatric expert, Us Magazine reported.

In her Facebook post, she posted that "Dr. Phil, With all due respect, Nick Gordon is under investigation for the attempted murder of my niece Bobby Kristina Brown".

She added that they have strong evidence of foul play and until this investigation was completed by law enforcement, she would ask that anyone else not provide this individual a platform to spin this situation to his benefit.

Bobby's sister concluded that if Gordon did not have the courage to speak with her brother Bobby and/or law enforcement about what happened the day her niece's body was found in a bathtub, he did not deserve to have a platform to speak to anyone of your caliber until this investigation.

Gordon found Bobby Brown and the late Whitney Houston's daughter facedown and unresponsive in their Atlanta, bathtub in late January.