Dreaming of brother being shot in the head infront of you

As Salaamu Alaikum respected Mufti. I wonder if Mufti can advise on a dream that I had probably about 20 years ago. The dream occurred before The time of Fajr Salat. I must have been about 15 yeas old at the time of the dream. I dreamt that I was accompanying my elder brother (he was two and a half years older than me) to go and see someone who he knew but whom I didn’t know. We met this person and my brother introduced me to him. Very shortly thereafter this person produced a gun and shot my brother point-blank in his head. I remember my brothers face turning white in the dream and awoke immediately. After awaking I looked across at my brothers bed as we shared a room at that time and he was asleep. Subsequently, about 10 years later my brother was murdered and to this day we don’t know the circumstances around his death. He was shot whilst in his car with a gun shot wound to his head in a very similar fashion to my dream. I’ve never mentioned the dream to anyone until now. Can Mufti Saap advise as to the relevance of this dream? Jazakallah