When Kathy Wagner’s son, Tristan, began experimenting with drugs at the age of 14, she told herself it was just a phase. But by the time he was 15, she had to face the gravity of Tristan’s addiction. Kathy opens up about the early signs that her son was at risk, the grief of losing him to an accidental fentanyl overdose, and how she began healing while writing her book, Here With You: A Memoir of Love, Family, and Addiction.