Girlfriend of alleged killer of Aussie brothers in Mexico now star prosecution witness

The girlfriend of one of the alleged killers of two Aussie brothers on a surfing trip in Mexico has flipped on her lover, as details about her past emerge.

The girlfriend of one of the alleged killers of Perth brothers Callum and Jake Robinson and their American friend on a surfing trip in Mexico has reportedly turned against her boyfriend to become the star witness in the prosecution.

Ari Gisell was arrested earlier this week with her partner Jesús Gerardo, also known as “El Kekas”, and his brother Cristian Alejandro, after bodies of the three friends were found on Saturday in a desolate section of Santo Tomas in the Baja California region.

Their surnames have been supressed according to local laws.

The young mum is a cockfighting enthusiast. Picture: Facebook

Mexican police allege Callum, 33, Jake, 30, and Jack Carter Rhoad, 30, were killed in a bungled robbery while they were camping at San Miguel beach, after locals attempted to steal the tyres from their pick-up truck.

Each had a gunshot to the head and were found stuffed down a 15-metre well hidden on a cliff.

In a stunning twist, prosecutors revealed to court on Wednesday that the woman had become a key witness in the case.

“She has flipped on the ringleader and the evidence she’s provided to the prosecution will lead this case going forward,” Nine News correspondent Alison Piotrowski, who was in the courtroom, told 2GB’s Ben Fordham on Thursday.

Ari Gisell was one of three arrested over the disappearance of the surfers. Picture: Supplied

“What’s alleged is that Jesús Gerardo was driving her car that night when he went out to that remote campsite. The prosecution is saying what we’ve been talking about for the last couple of days has potentially happened, that the two Aussies and their American friend were ambushed.”

Prosecutors allege Jesús Gerardo “killed them, took their tyres, put the tyres on her car and drove back”, Nine News reported.

When he went back to their house, the court heard he allegedly told Ari Gisell, “I f**ked up three gringos.”

The court heard she asked, “What do you mean?” to which he replied, “I killed them.”

Ari Gisell was arrested at her mother’s house later that day and told police she was allegedly a victim of domestic violence and wanted to protect her four-year-old child, the court heard.

The young mother is a cockfighting enthusiast who often posts photos online posing alongside her roosters and trophies, The Daily Mail reports.

In other social media posts Ari Gisell frequently jokes about her relationship with “El Kekas” and her love of bad boys.

Last month she shared a meme with Al Pacino and Michelle Pfeiffer from crime classic Scarface with the caption, “Pretty girls don’t hang out with handsome, they hang out with crazy people!”

“Mi mero mole,” she wrote, which translates to “this is my thing”.

Days after the alleged murders, she shared another meme of a person with their mouth open looking at something off-camera, with the caption, “Me watching my buddy being slapped who said he was boss in his relationship.”

Ari Gisell commented, “Me with El Kekas haha.”

Brothers Jesus Gerardo and Cristian Alejandro . Picture: Supplied

Piotrowski added that the stunning revelation that Ari Gisell was the key witness explained why Mexican officials “have been able to put him behind bars so quickly and also how they found the bodies”.

“This conversation that he had with his girlfriend is pretty damning,” she said.

So far only Jesús Gerardo has been charged in connection with the deaths of the three men, and only with forced kidnapping.

Piotrowski said the kidnapping charges may not be upgraded to murder until the next court hearing.

Ari Gisell and Cristian Alejandro have only been charged with drug possession.

“The judge did say that he can’t understand how one sole person could have done this, essentially kidnap and kill three men and take their tyres, it seems like too much,” she said.

“He suggested that the prosecution needed to look into more suspects, that they needed to broaden their investigation because it couldn’t have been done by one man alone.”

The court hearing in Mexico came a day after the parents of Callum and Jake gave a heartbreaking statement from San Diego, California.

Martin and Debra Robinson broke down in tears as they spoke of their sons, who vanished on April 27 sparking a frantic search after they failed to show up at the Airbnb they had booked in Rosarito.

Jake and Callum Robinson, originally from Perth, disappeared on April 27. Picture: Nine

“It is with heavy hearts that we share the news that Callum and Jake have been murdered,” Ms Robinson said.

“Our hearts are broken and the world has become a darker place for us. We also mourn the loss of Carter Rhoad, a close friend. They were young men enjoying their passion of surfing together. Now it’s time to bring them home to family and friends — and the ocean waves in Australia. Please live bigger, shine brighter and love harder in their memory.”

She said thanked those who had offered their condolences and said they had been “overwhelmed with the outpouring of emotions and support”.

“We have always been very proud of their academic and sporting achievements and admired their life choices as,” she said.

She spoke of Callum’s “larger than life character” and his sporting achievement, playing professional lacrosse in America.

She described Jake as a “happy, gentle and compassionate soul” who was pursuing a career in medicine.

“Jake’s passion was surfing and it was no coincidence that many of his hospitals that he worked in were close to a surfing beaches,” she said.

Their bodies were found down a well in El Faro, Santo Tomas. Picture: Guillermo Arias/AFP

Their comments came after the parents visited the morgue in Ensenada, Mexico, to identify their sons’ bodies on Sunday.

Instagram posts shared by Callum days before the trio vanished showed them relaxing at Rosarito Beach, where they had been surfing and camping.

His final post showed an image of San Miguel beach in Ensenada.

Another picture showed their white Chevrolet Colorado pick-up truck at a beach in Rosarito, which police believe was the same vehicle later discovered burnt out.

Jake, a Perth-based doctor, had flown to the US two weeks earlier to visit his brother, who was living in San Diego with his girlfriend Emily Horwath to follow his dream of becoming a professional lacrosse player.

On Tuesday, Ms Horwath shared a voicemail from Callum on Instagram with the caption, “Will be playing this on repeat.”

In the message, Callum says, “Happy Tuesday, good morning! It’s 11.11 and I’m just thinking about you. Just wanted to drop you a quick message and say, hello baby, hope you’re having a phenomenal start to your day. I’m sensing a big grin on your face for some reason today. I hope you’re full of positivity and smiles. Cheers baby, miss you.”

In an earlier post Ms Horwath said her heart was “shattered into a million pieces”.

Mr Rhoad, a recruitment worker from San Diego, was due to marry his fiancee Natalie Wiertz in just a few months after he proposed in the middle of last year.

— with NCA NewsWire