New heartbreaking details are coming to light about the tragic deaths of Gene Hackman, his wife Betsy Arakawa Hackman and their dog Zinna, and the role the couple’s other two dogs played in locating their bodies.

Veterinarian Robert Gruda told USA Today that Arakawa had taken Zinna for a “major surgery” in January, and had been told to keep the dog confined to a crate while she recover