There is military police in my home

I don't know if they are going to kill my parents or not but I am really frightened. I heard loud footsteps in the hall and my dad had been watching tv in the family room. I don't think my dad was ever down the hall by my room. I am really scared. They have threatened in the past to harm all of us. And I am too afraid to leave my room to check. I have a lock on my door and have barricaded off my door with two laundry baskets. I am too frightened to sleep.