About a month before a Pennsylvania woman and a Maryland couple died within days of each other in their rooms at a Dominican Republic resort, another American tourist fell suddenly and critically ill at a hotel on the other side of the island, loved ones said. His niece, Chloe Arnold, told Fox News on Sunday that Wallace had fallen ill nearly immediately after having had a scotch from his hotel room's minibar.
Chloe Arnold told the station that her uncle nearly immediately experienced blood in his stool and urine.
Dominican authorities have yet to give the family a cause of death, Ms Arnold said.
Bob Wallace had been in the island country for a family wedding, but by the time of the actual festivities, the adventure-loving 67-year-old man was hospitalized and too sick to participate.
Wallace's death was among several recently reported among tourists to the Dominican Republic.
At the same Hard Rock resort past year, another American man died under similar circumstances, the man's wife said.
Awilda Montes said she was on vacation at the Luxury Bahia Principe Bouganville Resort last October when it happened.
He died three days later, however, authorities failed to give a cause of death.
A couple, Cynthia Day, 49, and Edward Holmes, 63, stayed in the next door hotel, Grand Bahia Principe La Romana and were both found dead on May 30 in their room by hotel staff.
"Something's not right in the Dominican Republic", McCoy said.
The US State Department told Fox News: 'We can confirm the death of a US citizen in April 2019 in the Dominican Republic.
"Serious insults and threats have been levied against some of our more than 15,000 employees and their families, who are the backbone of our company and before whom we can not stand idle on the sideline", the statement said, according to the Daily News.
Following Wallace's death, it was reported that the Federal Bureau of Investigation would now investigate the deaths.
The FBI told Fox News it is joining other law enforcement agencies in looking into the recent increase in deaths at the Dominican Republic resorts.
Miranda Schaup-Werner and Yvette Monique Sport died at the Bahia Principe resort.
Harrison's wife, Dawn McCoy, was among them: she said that she scuttled a trip she planned to take to the Caribbean country on the first anniversary of her husband's death. "We have some reporters on the ground that are assisting us in gathering information that might be available", he told AFP.
According to a lawsuit filed by the couple, their room smelled of chemicals.