Witness: Laura Leal, 26, claims Gordon beat her until she saw stars. Another woman is now telling prosecutors she was attacked too
Injuries: Laura Leal was left badly battered on her body. She told DailyMail.com Gordon pinned her to the bed and hit her repeatedly before she was able to escape, hitting him with a candle and apparently breaking his nose
Tragedy: Nick Gordon was the fiancé of Bobbi Kristina Brown until her death in a bath at the house they shared in Alfaretta, GA. He was not charged but held legally liable over her death. Now prosecutors are moving in on him
A second former flame then came forward after she read media reports of the alleged attack on Leal and said similarities in the way both women were allegedly abused by Gordon left her feeling 'physically sick'.
Her relationship with Gordon is said to date back to before the death of 22-year-old Bobbi Kristina, Houston's only child with the rapper Bobby Brown.
Investigators from Fulton County, Georgia, believe that demonstrating that Gordon has a years-long history of domestic abuse will significantly boost their case.
'Bobbi Kristina may no longer have a voice but these other women do,' a source with knowledge of the inquiry told DailyMail.com.
'They can tell a court exactly how he manipulated and bullied them. Their testimony could be the game-changer.'
Bobbi Kristina spent six months in a coma and never recovered after she was found submerged in a bathtub in January 2015 with drugs in her system and bruises to her chest.
Gordon, her fiancé, protested his innocence and insists he did everything he could to resuscitate the aspiring singer after finding her unconscious at their Alpharetta, Georgia home.
However he was held legally responsible for Bobbi Kristina's wrongful death and ordered to pay $36 million in damages when he failed to fight a civil case brought by her family last November.
A treble clef is carved into her tombstone. Coins, a small angel figurine and a small posy of fake flowers were all left at its foot. Bobbi Kristina died in July 2015 after spending months on life support following a drug overdose. Her death had eerie similarities to her mother who was found unconscious in her bathtub at the Beverly Hilton hotel in February 2012. The pair are seen (right) in 2011
Bobbi Kristina Brown's grave stands between those of her mother Whitney Houston and her maternal grandfather John Russell Houston Jr. at Fairview Cemetery in Westfield, New Jersey
Nick Gordon breaks silence about night Bobbi Kristina was found
Gordon now lives with his mother Michelle in Sanford, Florida, where he was arrested June 10 and charged with domestic violence battery and false imprisonment.
Leal, his live-in girlfriend of the past three months, told police he flew into a jealous rage and repeatedly punched her in the head after preventing her from leaving.
She escaped the night-long attack by striking him in the face with a decorative candle before bursting into his sleeping mother's bedroom to beg for protection.
In a subsequent interview with DailyMail.com Leal said the attack was the shocking conclusion to weeks of domestic abuse after Gordon seized control of her life by shutting out her family and destroying her phone.
'I've been reading the reports about Bobbi Kristina and I'm physically shaking,' she said.
'I read about her being isolated, her family not knowing where she was, the manipulation, the bullying - it's the exact same thing.'
Gordon denied hitting Leal - telling police he was the victim, not her - and did not comment further when he was released from jail last Tuesday on $15,500 bond.
Investigators from the Fulton County District Attorney’s office subsequently flew to Florida to speak with Leal, describing their conversation as 'fruitful' but not revealing what was discussed.
They were then contacted by the third alleged victim, who supplied photographs of her and Gordon and said she was prepared to support a prosecution.
'When she heard about what happened to Laura Leal she felt physically sick and knew it was time to finally come forward,' added the source.
'It's a brave thing of her to do and it could make all the difference.'
Bobby Kristina's death eerily mirrored the passing of her mother Whitney, who was found drowned in a bathtub in a Beverly Hills hotel in February 2012.
Cocaine abuse and heart disease were later established as factors that contributed to the superstar diva's death.
An autopsy on Bobbi Kristina similarly listed drug intoxication and the immersion of her face in the water as decisive factors.
Gordon was taken in by Houston at the age of 12 and considered Bobbi Kristina his 'Li'l Sis' before their relationship became romantic.
He was sued by her estate last year, accused of causing her wrongful death by giving her a 'toxic mixture' and also stealing from her bank account while she was comatose.
When neither he, nor his lawyer, showed up at a hearing last November, a Fulton County Superior Court judge ruled against him by default.
A spokesman for the Fulton County District Attorney’s office said: 'We have nothing further to release at this time.'