Inside the home, which had been engulfed in flames, they found the body of Ana Paula Ribeiro de Souza, 54, according to the sheriff’s office. Police did not immediately reveal her cause of death. Her dog was also found dead as a result of the fire.

Genivaldo Gomes Moreira, 41, was arrested Sunday in connection with an apartment fire in Deerfield Beach that killed Ana De Souza, 54, the Broward Sheriff’s Office said.

The Friday predawn home fire that killed a Deerfield Beach woman and her dog struck investigators as suspicious from early on in the investigation. Sunday, an arson suspect was arrested in Manatee County and his address says this could’ve been a case of deadly domestic violence.