Femicide Investigation: Mexican police issue arrest warrant for suspected killer of American tourist

Mexican law enforcement officers hunting the killer of 25-year-old American tourist Shanquella Robinson have obtained an arrest warrant for the person they believe is responsible for her death, according to a report published Thursday by ABC News.

The development broke amid an ongoing FBI investigation after ABC News received confirmation from Daniel de la Rosa Anaya, a Baja California Sur prosecutor familiar with the facts on the ground.

The new development and other law enforcement reports raises disturbing new questions about Robinson’s death, which authorities originally believed was mere alcohol poisoning.

"This case is fully clarified, we even have a court order, there is an arrest warrant issued for the crime of femicide to the detriment of the victim and against an alleged perpetrator, a friend of her who is the direct aggressor,” said  de la Rosa Anaya, according to the U.S. news network.

“Actually it wasn't a quarrel, but instead a direct aggression. We are carrying out all the pertinent procedures such as the Interpol alert and the request for extradition to the United States of America. It's about two Americans, the victim and the culprit..." de la Rosa Anaya reportedly said.

Robinson's mother, Salamondra Robinson, reacted to the news on Wednesday after hearing it for the first time from the television network, saying, "I feel so good, that's a good feeling. That's what we have been waiting for, for someone to finally be held accountable and arrested. I just can't wait for justice to be served."

Mexican police said Tuesday night that Robinson may have been alive and received medical attention  from a local doctor for several hours before police found her and was pronounced dead, according to a report published by the Charlotte Observer.

That doctor, Dr. Karolina Beatriz Omelas Gutierrez reportedly warned Robinson's friends that the young American tourist was dehydrated and intoxicated, and needed to be rushed to a hospital, but they tragically did not act on the advice.

Robinson’s death was originally believed to be alcohol poisoning, but a recently examined death certificate revealed the cause of death was actually a “severe spinal cord injury and atlas luxation,” a disturbance of her first two neck vertebrae leading to the investigation, raising new questions about the possibility of violence, WSOC-TV reported.

Video also eventually surfaced revealing depicting Robinson being beaten inside her villa, and her mother, Sallamondra, told that news outlet she recognized individuals in the new footage as Americans who traveled to Mexico with her daughter.

According to the new report, Robinson's friends sought medical help at 2:13 p.m. After a medical professional from the American Medical Center arrived at Robinson’s Puerto Los Cabos villa, the friends explained she had drank a significant amount of alcohol.

The medical professional noted Robinson was generally unresponsive, dehydrated, and intoxicated but was able to maintain stable vital signs at that moment, according to the more recent report. The medical professional at the villa then suggested Robinson's friends take her to a hospital, but her friends didn’t want to.

It is unknown why Robinson’s friends declined to transfer her to a hospital under the dire circumstances.

Two hours later at 4:20 p.m. one of Robinson's friends panicked and called 911 because she began having a seizure. When emergency medical professionals returned, they noticed Robinson’s pulse had slowed significantly. A half hour after that at about 4:49 p.m. emergency personnel said they could no longer detect a pulse and started using CPR until paramedics arrived.

Despite trying 14 CPR sessions and injecting Robinson with five doses of adrenaline, she did not wake up from what they described as a cardiac arrest, and she died at 5:57 p.m. according to the police report.

Robinson, who is from Charlotte, North Carolina traveled to San Jose del Cabo on the southern edge of Mexico's Baja California peninsula with six friends on Oct. 28. They rented a villa in Fundadores, an upscale gated community that features a private beach club.

In less than 24 hours after her arrival, Robinson's friends called her parents to deliver the devastating news that their daughter had passed away.

The FBI began investigating Robinson's death in early November, alongside Mexican police who believe her death may have been a femicide, a type of gender-based driven violence.

Robinson’s mother, Sallamondra, said she's relieved the FBI is working with Mexican authorities to investigate her daughter’s death. She said she wants her daughters friends to face justice in Mexico.

"I would like to see each one of them sent back to Mexico because their plan was to come back here thinking that they wasn't going to be prosecuted," Robinson told ABC News. "She was a caring person… and I want them to always remember that. We're going to keep her legacy alive."