"It was very distressing especially as the dead animals were found by my grandson.
"We used to check on them every day.
"I had to bury all the guts, so it was very upsetting."
The second property was at Newman Road where three ewes in a paddock of nine were slaughtered and the guts and heads left behind.
Eketahuna Constable Donna Olliver said police executed a search warrant on a house in Pahiatua last Friday and, as a result, arrested the four people.
She said cannabis and property stolen in a burglary in Eketahuna had also been found in the house.
Another Pahiatua person has been arrested and charged with receiving stolen meat.