THE MURDER of a US tourist in Mexico was allegedly caused by jealousy after she reportedly paid for the majority of the trip, an activist has claimed.

Shanquella Robinson was found dead in Cabo San Lucas, Mexico, on October 29 while on vacation with friends to celebrate a birthday.

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Mexican officials ruled her death as a homicide after a harrowing video surfaced that appeared to show one of the so-called friends beating Robinson while others screamed at her to fight back.

John C. Barnett, a civil rights activist involved in a rally held last month demanding further information into the murder has said she was killed because of "jealousy."

“What you’re looking at is like a Jesus and Judas situation, some jealous friends,” Barnett claimed Thursday on Cuomo on NewsNation.

“She paid for the majority of the trip from my understanding.

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"She booked the villa and wanted her six friends to go and celebrate with her.”

Robinson's friends "lied to hotel staff to flee the country and laughed after her death," according to claims from the concierge.

The series of events leading up to her death in just 24 hours since the arrival of the group is unclear.

The friends initially claimed that Robinson died from alcohol poisoning.

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The only note on her death certificate in line with this claim is that it said "person found unconscious in her living room."

However, an autopsy later revealed the true extent of her injuries which were more consistent with her beaten face.

The 25-year-old was found dead in the luxury villa where she was staying with friends with a broken neck and severe spinal cord injury.

The emergence of the shocking footage of Robinson being attacked by one of the friendship group confirmed theories that it was not alcohol-related.

The concierge spoke to investigators on the morning of November 17 and said he noticed something was not right when the group arrived on the first night.

He added that Robinson was the last to join the group for dinner and "seemed not to fit in with the others."

After greeting her, the concierge said: "She was indifferent, nothing to do with the atmosphere of celebration.

"She was out of place at the party."

One of the six friends has a warrant issued for their arrest following an investigation, according to lawyers for Robinson's family, Sue-Ann Robinson, unrelated to the family, and Benjamin Crump.

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Sue-Ann claimed that while Mexican authorities have identified a suspect, they have yet to extradite anyone from America.

The warrant for the suspect's arrest was issued months ago and the International Criminal Police Organization has put out a red notice.

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