An arrest warrant was issued Wednesday in the death of 25-year-old Shanquella Robinson, an American woman vacationing in Mexico, for an alleged perpetrator who was not named, according to a local prosecutor.As FBI officials investigate the death of Robinson, Mexican authorities revealed Tuesday night that Robinson may have been alive and received care from a medical professional for several hours before authorities arrived and she was pronounced dead, ABC News has learned.According to the new police report, Robinson's friends requested a medical consultation at 2:13 p.m. After a general practitioner from the American Medical Center arrived at the address in Puerto Los Cabos, Robinson's friends told the medical professional that she had drank a lot of alcohol.Medican personnel said they noticed Robinson had a poor verbal response, was in a state of drunkenness and was dehydrated, but had stable vital signs, according to the police report.Robinson was declared deceased at 5:57 p.m., the report saidAccording to the new police report, Mexican authorities were notified by Donovan around 5 p.m. local time of Robinson's condition."