It is just some erational fear. Why would all your friends and family die in a horrific ways? It only happen in the moives. Remember our worry 80% will not happen. You need some counceling about killing yourself.

For many people, death in general is a trigger for anxiety. It represents the ultimate loss. Your obsessing over it is common among many people.
The suicidal thoughts are your attempt to try to control an uncontrollable situation.
Anxiety and "control" go hand in hand. With anxiety we feel helpless and hopeless, and we grasp at whatever we can in an attempt to give us a sense of control. Sometimes it is even something as drastic as suicide.
My suggestion for you is certainly keep seeing your therapist. But also learn cognitive behavioral therapy (CBT) to learn to manage anxiety in general. As you learn not to obsess so much, your grasping for control will settle down as well.
Also, learn zen meditation. Zen meditation teaches us how to "let go" of a thought, and helps tremendously with anxiety disorders as a whole, and that includes obsessing.
You can recover! It will take effort and time, but be patient. Always remember, the future is not yet written, the future is determined by your efforts of today. Time will pass regardless what you do, so plant the seeds of change and see what grows.

So sorry you are dealing with this but don't get into the habit of thinking we are a victim to our thoughts or that our thoughts control us. They don't. We have the power to control what we think about and our emotions, anxiety, fear, etc. follows our thoughts. Then the more you think about something, the more you think about it. Like a snowball rolling down a hill. When my mind starts racing with negative stuff and fear, I say "STOP. Everything is okay." Just hearing myself say that stops the cycle. Then I discipline myself to think positive, truthful or funny thoughts. Hoping you get some relief.

You are not alone!! I have a fear that for some strange reason, those closest to me, such as my mom (whom I've very close to) & daughter may get into a bad car accident. This makes me anxious daily! I often have to tell myself that my thought are irrational.

Nohbdy121115,Are you still having negative thoughts?

Sort of yes, but they have subsided a little

I heard a guy on the radio today talking about fear. He made the word into an acrostic: False Evidence Appearing Real. I thought that was really good. He was talking about how most of the time when we are fearful, it's not even about something real.