How Did it Happen?

How

All I could think about was "How is that his brother?" They didn't even have the same last name. Then he corrected himself, "stepbrother." He said his mom was divorced and that Herbert was his stepdad's son. He also said Herbert took time in jail for second degree murder, but that wasn't my brother he murdered. It was Christopher's dad. That made his eyes water, and I felt really bad for him.
It really hurt me that someone had to go through what I went through. To me no one should experience that. I've never seen Christopher so upset so I started taking matters into my own hands. Now we needed to figure out how he was doing this. So we did something I never thought I would do again. Go back into that store. Tomorrow morning was the day I broke the promise to myself of going back to that store. I was so frightened, but Christopher was going to be with me. I was glad I wasn't doing this alone.
The next day Christopher and I went to the store. As we passed the shop we didn't see Herbert, but we both felt the presence above us. We knew he was near. We went into an alley waiting for him to come. It was Christopher's idea to wait in an alley, but I didn't know if it would work. Christopher and I were so afraid we held hands, which I enjoyed. I told him one thing, "Promise me you won't let go." before he could say anything Herbert appeared. My heart skipped a beat, I wasn't expecting for this to work, but it did. I didn't know what he wanted but Christopher was suddenly gone. Herbert put out his hand towards my face. Then appeared a glass. The glass was showing some sort of video, as if it was meant to be a memory. It showed my brother being killed. It was hard to watch, but there must've been a reason he showed me this. As my eyes started to become red the video continued to play. It replayed as if on loop. Then it showed another man, not boy, but being shot. It showed him killing himself. So Herbert did commit suicide, so that he wouldn't pay the consequences. Then something scary played. It showed my mom, then a big red X over her face. He was trying to kill her. Then it all went blank.
Now I knew who killed my brother, and I knew he was trying to kill my mom, I just didn't want to know. "Did you kill my father!" I shouted at him but he just grinned. "What do you want." I screamed, but he said nothing,"my mission is done." He said.
But there was one thing that caught me off guard he said "Your life mission is going to get worse." What does that even mean. Then the sky became dark and it started to rain. The glass broke, and the storm came down. Herbert Blouse was officially gone, but my life just went down for the worse, but where was Christopher. Is my mom dead, and how am I going to get home. I wanted to cry but I knew that wouldn't help me right now. I needed to think about the best, but was that even possible? My mom could die in the next 24 hours and I won't be with her. Then it hit me. Was Herbert the supposed drunk driver? Is this his plan to kill my mother. He's the reason my mom was slowly dying. Then the storm hit even harder. I was soaked and very unstable. I needed to get home, but how? How did it happen?