Wedding Canceled: I'm a Murder Suspect

When I was ten years old, both my parents passed away. My sister, Brianna, and I only had each other left. We were tormented at the orphanage before the Larsons adopted us. They doted on Brianna and me, and even allowed their daughter, Vivian Larson, to get engaged to me when I was 20 years old. It was a wonderful tale of love. Vivian didn't let any of us down. She would have given me the moon if she could, and she loved me with all her heart. During the ten years we spent with the Larsons, Brianna and I led a good life and never suffered at all. The night before we got married, Vivian took out a treasured bottle of vintage wine. It was to be served at our wedding. However, I poisoned the wine and killed everyone in the Larson family, including my own sister.