The home was evacuated Wednesday morning, days after Hurricane Irma knocked out power, creating risky conditions for the elderly residents.
The number of storm-related deaths in Florida, Georgia and the Carolinas now tops 40 - "such a small number", the president said.
"We're conducting a criminal investigation into the deaths that occurred here", Tomas Sanchez, the Hollywood police chief, said at a news briefing Wednesday. Police say that the 145 patients who were sent to Memorial Regional Hospital include four from Larkin Community Hospital Behavioral Health Services - a facility that shares a building with the Rehabilitation Center.
Officers ordered an evacuation of the building and 115 patients were taken to nearby hospitals.
The death toll from the storm approached 80 as officials continued to assess the damage after Irma powered through the Caribbean as one of the most powerful Atlantic hurricanes on record and slammed into the Florida Keys archipelago with sustained winds of up to 130 miles per hour (215 km per hour).
- 94 degrees (34 Celsius) is what the heat and humidity feel like in South Florida. Anitere Flores said on Tuesday's conference call.
Other areas of Florida - such as Seminole, west of Tampa - aren't likely to get power turned back on until "midnight September 17", Duke Energy said.
Utility firm Florida Power & Light said it had provided power to some parts of the Hollywood nursing home but that the facility was not on a county top tier list for emergency power restoration. "How am I going to last here?" she said, as a tear rolled down her cheek.
Local authorities are still sorting out what exactly went wrong at the 152-bed Rehabilitation Center at Hollywood Hills in Hollywood, Fla., where a loss of power and the apparent lack of a functional backup generator created fatal heat.
In remarks to Fox News' "America's News Headquarters" show, Bondi said the Broward County State Attorney's Office "are all over" the investigation into the troubling deaths amid widespread power outages.
More than 6 million people were evacuated from their homes in Florida, and they have slowly begun to return, even as roadways remain littered with debris, homes lack electricity and traffic signals have gone dark. CEO Jacob Solomon said the group encouraged people to evacuate before the storm if they could, but now they're focused on helping them in their homes.
Almost half of Florida was engulfed by Irma, which left flooded streets, damaged homes and displaced residents in its wake.
"People are telling me different things", she said Wednesday evening. He added: "As of Tuesday, [the facility] was reporting that everything was OK, that it was using portable air conditioners and fans". Police are going to the 42 other assisted living facilities in the area to check on those other residents.
"It's a team like very few people have seen", he said.
Older people can be more susceptible to heat because their bodies do not adjust to temperatures as well as younger people.
"The people who were working there worked hard to make a good outcome for our patients", she said.