Carly Gregg, age 14, seen laughing in court above, shot and killed her mother in their home and then lured her stepfather home and shot him in the shoulder. She was convicted of first-degree murder, attempted murder, and evidence tampering. Carly's mother Ashley had found vapes in Carly's room and discovered that her daughter was living a secret life. This is when Carly decided that her mother needed to die. Carly Gregg was sentenced to life in prison.