That is so sad. But, while there is evil, there is also the kindness and love that your family have for these animals.
I think it is important to hold onto our kind and loving selves because, sometimes, when bad things happen, our hearts break a little. Then they start to harden. Sometimes, people gradually become less kind and loving or they mistake being kind and loving for being foolish because it hurts. However, if everyone hardened their hearts, there would be no kindness or love left.
I try to remember that when I feel very sad about senseless acts of cruelty.