A Florida couple was found dead on Saturday after an alleged murder-suicide. Police described the incident as “the most gruesome crime scene” they had ever witnessed.

The bodies of Sabrina Marie Dumdei and John Winton were discovered at an apartment complex on Anna Marie Island after Dumdei’s father arrived to check on his daughter. Bradenton Beach Police said Dumdei’s father arrived at the scene and noticed that she was on the floor.

“He broke a door window to gain entry and found her on the floor,” said police chief Sam Speciale.        

Authorities pronounced Dumdei and Winton dead at the scene. Sgt. Lenard Diaz said it was not immediately clear what had caused their injuries but autopsies of the bodies will be conducted to determine what caused their deaths.    

“We have no idea,” said Diaz. All I can tell you is there’s a lot of blood,” he added.

Diaz said the glass sliding door of Dumdei’s house was splattered with blood. The plastic chair on her balcony was also filled with blood. “This is probably the most gruesome crime scene I’ve ever worked—the worst in 37 years that I’ve ever seen,” said Diaz.

“It’s going to be really hard to put together what occurred, what the chronological events were that led up to the actual deaths,” he added.    

Authorities noted that there had been reported incidents of domestic violence at the Florida couple’s home before the fatal incident. Police arrested Dumdei in July after she allegedly hurled a can at her partner, but she was released after the charges had been dropped.  

On Aug. 29, Winton was also ordered by the court to not contact Dumdei after he was arrested on charges of aggravated assault with a deadly weapon. He was also charged with tampering with a witness, false imprisonment, and domestic battery.

Police revealed that Winton even threatened to kill Dumdei while under arrest in August. “I will kill her,” he said. “She gonna pay. If I get charged with felonies, I’ll kill her then myself. I will cut her throat,” he added.

Bell, Florida Patrulla bloquea el camino de la escena del crimen en un caso de suicidio-asesinato de ocho personas. Septiembre 19,2014. Reuters/Barbara Liston