In November 2018, the United States was rocked by a deadly mass shooting. Per ABC News, 12 people were shot and killed by a violent shooter at the Borderline Bar and Grill in Thousand Oaks, California. Among the victims who lost their lives that day was 18-year-old Alaina Housley, the niece of Tamera Mowry-Housley.

In her memoir, "You Should Sit Down for This," Mowry-Housley detailed what would become the worst night of her life. On the night of the shooting, she was fast asleep when she and her husband Adam were jolted awake by a phone call. It was her brother-in-law, Alaina's father. "Alaina went out dancing with friends, and there was a shooting — it's all I know right now," he told them (via People).

Mowry-Housley was beside herself with worry. While her husband drove to Thousand Oaks to see if he could find their niece, she stayed behind and called the emergency hotline over and over. Later, she would receive the news everyone in the family had been dreading. Alaina's father confirmed it: Her niece was one of the victims who died on that horrible night.

The news of Alaina's death devastated Mowry-Housley, who thought of her niece as her "favorite Housley." "I learned that day how much love can hurt," the actress stated in her book.