Life changing experience

My name is Elizabeth and I will never forget The day I witnessed my best friends murderr . Watching her being killed just marked my life permanently. It's not that she was killed but it's the guilt that is killing me inside. Today I ask myself why didn't i do anything to stop him from killing her? Why didn't I call out for help ? All of these questions pop up in my head. Every time I see Madison's mom in the street looking depressed .I feel like if she thinks I'm the reason they killed her. The worst thing is that I can't even remember the last word she said to me. I can't remember the last laugh, the last smile I saw on her face. What I wish for now is to have at least one more day with her.