According to the Dominican authorities, all four died of natural causes but the families are looking for answers.
"He started feeling very sick, he had blood in his urine and stool right afterward", Ms Arnold said. "Things can happen. But right now we don't really know what's causing this and that's the biggest concern".
Three people whose deaths have been confirmed all arrived on May 25 in San Pedro de Macoris, a seaside resort in the south of the Caribbean country, Dominican authorities said. Lawrence-Daley says she suffered a broken nose and facial fractures after a man dressed like a hotel employee attacked her, dragged her into a maintenance room and assaulted her for several hours.
Another woman who stayed at the Bahia Principe this week claimed that she "vomited blood" after drinking a 7-UP from her minibar. Felicia Nieves told WTXF her sister had a drink from the minibar inside her room, went to bed and never woke up.
The New York Post reported that almost 70 tourists have reported getting violently ill while vacationing in the Dominican Republic since March, according to a commonly used website that tracks food-borne illness outbreaks.
She said that her son, who was a veteran, "was healthy".
"This could have been me in the headlines", Montes told The Post. "If I knew then what I know now, I would have left the island straight away". "How many times have we heard about problems?" asked Murphy. "I just think about it sometimes and I want to cry".
It is not clear if a second autopsy will be performed on Day and Holmes.
"There is no indication of any correlation between these unfortunate incidents", Bahia Principe Hotels and Resorts said in a statement.
A team of experts from the US Centers for Disease Control and the World Health Organization has since descended on the hotels and is conducting tests at the Bahia Principe hotels where the trio died.
"I didn't plan on coming back a widow", Dawn McCoy said through tears.
McCoy said her husband was mumbling, sweating profusely and "had a very potent, unusual smell" before his death.
A Colorado couple told Inside Edition they became seriously ill at the resort complex's Grand Bahia Principe hotel last summer as well.
Kaylynn Knull said she and her boyfriend enjoyed their vacation until they noticed their room beginning to smell of chemicals.
Thirty members of the family took off for the Dominican Republic to be in place for Tickenoff's wedding on April 14.
David Harrison of Maryland died at the same resort past year.
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