one of my wives killed a pet, but who?

suspects:
wife number 1 lets call her ( solafa ), the owner of turtle
wife number 2 lets call her ( mabroka) , the owner of parrot

crime scene:
a dead turtle covered with parrot shit, laying dead over a Persian carpet, NO blood on turtle or over the expensive carpet.

how did it happen?

solafa says that mabroka use to put turtle inside parrot cage everytime she go for milking goats, she keeps telling me that mabroka is retard and thought the 2 animals will play together.. which caused the turtle death, and get thrown away on carpet disrespectfully after it died inside cage to not effect parrot health.

mabroka says that solafa killed her own turtle, because she was thinking to ask her husband ( ME ) to get her a new pet ( canary bird ), and she used to poison her turtle to die, and it finally died, she used the parrot shit from inside the bird cage to cover her crime and get away with it.

checking on solafa nails i noticed parrot shit remains inside her nail, but she told me its because she try removing it over her dead turtle, to clean it before bury.

i want to know who is responsible of the turtle death, who deserve to be slapped tonight??????