On Thursday evening, the body of Port Saint Lucie resident Alisa Susan Kerman, 52, was found in her home. She had been bludgeoned to death with a sledgehammer.
The two people who lived with Kerman, David Weingard, 27, and Georgia Scordamaglia, 31, had gone missing, along with some firearms Kerman had in the home.
Kerman, who owned a bounce-house company, also had her red 2003 Chevrolet Silverado taken.
On Sunday night, police caught up with Weingard and Scordamaglia at a Broward hotel.
According to investigators, Weingard and Kerman had gotten into a heated argument.
Police say that on the morning after their argument, Weingard took a sledgehammer and struck Kerman in the head three times with it as she slept.
Investigators say the hammer Weingard allegedly killed Kerman with is used for securing bounce houses.
The official cause of death is listed as "blunt force trauma to the head."
Weingard and Scordamaglia were considered persons of interest when detectives discovered that Kerman's guns and truck were missing along with the pair.
Cops were able to track the couple down to Broward using cell phone pings from Kerman's cell phone.
Investigators spotted Kerman's stolen truck parked across from the hotel. They also found one of her stolen handguns.
Weingard and Scordamaglia were arrested on charges of first-degree murder. The are being held at the Broward County Jail.