Accused killer in Robinson brothers and Carter Rhoad murder trial described as hitman

One of the men accused of killing Australian brothers Jake and Callum Robinson and their American friend in Mexico was an assassin with a list of targets, a court has heard.

The Perth brothers were on a surfing trip in Baja California with Carter Rhoad in April 2024, when the men went missing and were later found dead.

Three Mexican men, Jesús Gerardo, Irineo Francisco and Ángel Jesús, are facing aggravated homicide charges over the deaths.

Ari Gisell, 23, who was last year convicted of instigating a robbery which ultimately led to the alleged murders, testified in the murder trial in Ensenada on Monday local time.

Gisell is the former girlfriend of Jesús Gerardo, who is also known as El Kekas.

She told the court Jesús Gerardo described to her how he killed the men and joked about how they cried.

He said one of them pleaded, "please don't kill me because I have a wife," Gisell told the court.

Jesús Gerardo was a hit man who always carried a gun with him and had a list of people who he planned to kill, Gisell told the court.

She had testified in an earlier hearing in 2024 that Jesús Gerardo confessed to the killings, telling the court at the time he said, "I f***ed up three gringos … I killed them".

'They had good tyres'

In her testimony on Monday, Gisell told the court details which had never been publicised about the day the Robinson brothers and Carter Rhoad were killed.

She said she previously could not remember many of the details because of her drug use, but has since been sober for more than two years in prison.

Gisell told the court they first met the Robinson brothers and Carter Rhoad at Punta San José, a remote surfing location where the tourists were camping.

The court heard Jesús Gerardo told her to ask the men for fuel because their car was empty.

Gisell described the tourists as very "kind" and "friendly", and said they offered to share their fuel.

"I told El Kekas they had good tyres, and good phones," she said, but told the court she was not encouraging him to rob the men.

Gisell said she and Jesús Gerardo left the beach and returned to his mother's home, but he and his stepson later went back to the beach.

She told the court the stepson took a shirt to wrap around his face to hide his identity because "it was going to be his first job".

Jesús Gerardo and the stepson later returned in the tourists' car, which Gisell said was splattered with blood.

She said when Jesús Gerardo came back he had three phones in his pocket, two chain necklaces, and his boots were covered in blood.

Witness says suspect boasted about killings

Gisell told the court she did not ask Jesús Gerardo any questions about the incident because she was afraid of him due to her reputation as a hit man, and because he was violent.

She later found out about the two other accused killers' involvement when Jesús Gerardo was boasting about how he killed the three foreigners, she told the court.

Gisell also said the Robinson brothers and Carter Rhoad were good people who deserved justice, and she empathised with their parents as a mother herself.

The trial was initially expected to take four weeks, but is now expected to take longer due to a sudden change in the presiding judge, and scheduling issues.