Six months ago a 25-year-old businesswoman lost her life while on holiday to Mexico, and now her family are going to the White House to seek answers in what's become a mysterious and controversial case.
Shanquella Robinson went on holiday to Mexico with six university friends in October last year.
She was found dead the next day in a hotel room in Cabo San Lucas.
It was initially thought she had died as a result of alcohol poisoning, which is what her friends told her parents.
However, an autopsy released in November later revealed she had suffered a broken neck and other traumatic injuries.
The investigation was handled by various authorities, with a local Mexican prosecutor saying it was a homicide, and the FBI turning around six months after her death saying they were not going to pursue charges.
A video began circulating online after her death, which showed Shanquella, from Charlotte, North Carolina, being repeatedly punched and kicked by another woman - allegedly one of Shanquella's friends.
Someone standing nearby can be heard in the footage asking "can you at least fight back?"
Now, her family have made their way to Washington DC to visit the White House, making 200 days since Shanquella's death.
In March the family wrote to President Biden demanding that the "direct aggressor" in the video be extradited to face charges in Mexico.
Police investigated, with Mexican authorities initially saying there was no clear evidence that Shnquella was murdered.
The FBI also became involved in the investigation, however in April 2023, the FBI and federal prosecutors announced they had completed their investigation and would not be pursuing criminal charges.
In a statement, the US Attorney's Office in the Western District of North Carolina said: "As in every case under consideration for federal prosecution, the government must prove, beyond a reasonable doubt, that a federal crime was committed.
"Based on the results of the autopsy and after a careful deliberation and review of the investigative materials by both US Attorneys' Offices, federal prosecutors informed Ms Robinson's family today that the available evidence does not support a federal prosecution."
The decision not to pursue charges came months after local Mexican prosecutor Antonio López Rodríguez announced the case was being investigated as a homicide.
So what do we know about the death of Shanquella Robinson? And why has the case sparked so much controversy?
What happened to Shanquella Robinson?
On October 28, 2022, Shanquella Robinson went on holiday with a friend and five others. The group were staying at a luxury rental apartment in the Puerto Los Cabos resort in the resort town of Cabo San Lucas, Mexico.
Just after 2pm the next day, October 29, a doctor from the American Medical Center, a local hospital, is called out.
The doctor arrived within an hour and found Shanquella stable but she was described as being dehydrated, disorientated, verbally unresponsive, unable to communicate and appearing intoxicated.
The group she was with told the doctor she had drank too much alcohol. The doctor suggested Shanquella be taken to hospital for treatment, but the group says they would rather she was treated at the property.
Backup medical assistance was requested from paramedics, and around the same time, Shanquella's mum, Sallamondra Robinson, received a call saying her daughter was sick.
About an hour after the doctor arrived, Shanquella's condition deteriorated, and she suffered a seizure before beginning to have trouble breathing. CPR is performed, but just before 6pm, Shanquella is pronounced dead.
The rest of the group went back to Charlotte, visiting Shanquella's parents and telling them their daughter had died of alcohol poisoning.
But the parents quickly became suspicious as stories within the group began to change, with inconsistencies between members' stories.
Questions as to cause of death
On November 5, a notarised copy of an English translation of Shanquella's death certificate was issued.
It said she died 15 minutes after sustaining "severe spinal cord injury and atlas luxation" - atlas luxation is the dislocation of separation of the skull bone from the atlas bone, which is the first bone of the neck.
On November 11, WBTV published an interview with Shanquella's parents.
They said they had doubts that alcohol poisoning killed their daughter, especially after seeing a death certificate saying she had neck and spine injuries.
In the interview, the family say they had contacted the FBI's Charlotte office for help and were even considering hiring a private investigator.
There was plenty of media attention on the case, with the family speaking to a variety of outlets to raise their concerns.
Investigations continue
On November 16, video begins to circulate online which claims to show a naked Shanquella being hit repeatedly by another woman.
Shanquella's mum told multiple media outlets she recognises her daughter in the footage.
On November 17, it's reported that Mexican authorities, or more specifically the State Attorney General's Office of Baja California Sur, are investigating Shanquella's death.
They say they are looking into whether her death is femicide -the killing of women or girls because they are female.
The following day, November 18, the FBI gets involved, confirming they are investigating Shanquella's death.
Just a few days later, a police report featuring new details on Shanquella's death is published and obtained by the Charlotte Observer.
The report says a doctor worked on Shanquella for hours before her death, contradicting the death certificate which says she died within 15 minutes of sustaining a neck injury.
However, an autopsy report conducted in Mecklenburg County, North Carolina, reportedly found no broken spine.
An arrest warrant was reportedly issued on November 23, levying charges of femicide - though the name of the suspect in the warrant was not released.
Attorney General of Baja California General Prosecutors Office Daniel de la Rosa Anaya said Shanquella did not die from alcohol poisoning or injuries sustained in a fight, but a "direct assault" which caused the traumatic injuries.
On Wednesday April 12, 2023, officials with the US Attorneys' Office in two districts in North Carolina announced that prosecutors in the US would not be bringing charges into what was previously a federal investigation.
They said they would not be prosecuting any of those on the trip with Shanquella because investigators couldn't prove a crime "beyond a reasonable doubt".
Family hits out
A spokesperson for Shanquella's family said after the announcement that charges would not be brought that the family were "disappointed but not deterred" by the outcome.
The family have, however, remained critical of the handling of the case - crying out for justice for Shanquella.
They even went right to the top, calling on President Biden and the State Department to intervene in the death investigation.
"We were hopeful that once the FBI got engaged, that they would respect this American citizen, this young black woman who, based on the video, did absolutely nothing to warrant such a savage beating," said civil rights attorney Ben Crump on Friday morning, May 19, in Washington DC.
Shouts of "Justice for Shanquella Robinson" rang out across the crowd who had gathered in the capital to protest, while Crump, surrounded by family, supporters and co-counsel demanded "diplomatic intervention" in connection with Shanquella's death.
Family and attorneys met with Stephen Benjamin, director of the White House Office of Public Engagement, according to attorney Sue-Ann Robinson (no relation).
"They heard us and they're hearing the family and they're understanding that this is, it is a case that came from the people," she said.
"The White House is starting to get the message that we're not gonna stand down. We're not gonna accept 'No', we're just gonna accept 'Later', 'Tomorrow', '10 years from now'."
