Sheriff Ken Mascara confirmed two of those deaths were homicides.
Investigators have not yet said how they were killed.
Gabriele Reusch Legg, 56, and 70-year-old Gary Boice were killed. Legg, Boice and 61-year-old Melvin "Chip" Anderson were all found dead Wednesday.
Reusch Legg was planning to move in with Boice when her body was found rolled up in a carpet in the garage of a house on Ash Street.
Boice's body was found in his home about 3/4 of a mile away in the Oleander Pines neighborhood.
Anderson was found dead in a car not far from the first home.
The sheriff said Anderson had some sort of medical episode and appears to have died of natural causes, pending a toxicology report.
Anderson is the main suspect in the deaths of the other two people. The sheriff is asking anyone who may have had any interaction with him to reach out to them. Neighbors said he was seen selling furniture in the days leading up to the discovery of Reusch Legg's body.
“We want to see what exactly Anderson was removing from the house and either giving away or selling in front of the house," Sheriff Mascara said.
Anderson was the nephew of Reusch Legg's deceased husband and had been living with her for the past few years.
Investigators don't believe any other people are involved.
Legg's brother, Wolfgang Reusch, described his sister as someone who looked for the best in people.
"A big heart. Helping people. Always trying to see the positive aspect of life," Reusch said.
He said Legg's husband passed away several years ago. Before he passed, his nephew, Anderson, moved in with them. Reusch said he didn't move out after Legg's husband died.
"I met Chip on numerous occasions," Reusch said. "It was clear that apart from living at that house and working with my sister, he had very little going on in life."
Legg was a painter, and neighbors said she met Boice by painting his home. Reusch said her life was turning around for the better when they met. She was planning to move in with Boice.
"She had made it clear that this new life for her meant he had to move on, too," Reusch said. "He was faced with an insecure and unsure future and just snapped," Reusch believes.
The family of Reusch Legg has set up a page on fundly.com to raise funds for her funeral.