My CAT died and I am missing him a lot

The history behind the issue, my cat, Neron, was about 10 years old. I’ve been having some troubles with my dad. I live with him and his new wife because my mom passed away around 15 years ago. The problem is that we’ve been having conflicts, and he wants to take control of the entire house. He’s been messing with me and harassing me since he returned to the house after the pandemic about 2020 from the U.S., and I live in a country in Latin America. I welcomed him, but that was the beginning of all the troubles.

The house is a family home that we inherited from my mom, and I’ve been living there alone since I was 17. So, how is all this connected to my 10-year-old cat? Recently, with some legal problems involving my dad, and because I sometimes travel for family visits or work, he intentionally neglected my cat, making him starved to death. A friend had to step in and pick him up when he was in terrible shape. Unfortunately, he lasted only five days at the veterinary clinic.

I’m still away but returning soon, I don’t know what to think and do. My dad deliberately killed my cat over the legal issues between me, my sisters, and him, which are starting to progress a little in our favor. I’m struggling to figure out how to forgive him. My cat was like a son to me, more than ten years living together. While things weren’t always perfect, they never made him suffer before. Why do people act like this? Why do they harm even those who are their own children?