Given the task definition and input, reply with output. In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: J.K. Rowling had reused her magic and brought Dumbledore back to life. A spokesperson for the author confirmed Rowling had sent a letter and a package to a Texas teenager who optimistically found strength in the words of a Harry Potter film after witnessing the murder of her family. Fifteen-yiear-old Cassidy Stay lost both parent s and four _ to a gunman in Texas last month. Cassidy was shot in the head and survived the gunshot wound only because she played dead. Authorities had called her survival a miracle. Cassidy had seen the unimaginable tragedy, but was still thinking about happiness. At the memorial( ) for her family, Cassidy gave a speech in front of the media saying she believed her family was "in a much better place." Quoting the words of Dumbledore, the wise headmaster of Hogwarts, she said, "Happiness can be found even in the darkest of times, if one only remembers to turn on the light." The same day Cassidy gave her speech, a Facebook page called "We want J.K. Rowling to meet Cassidy Stay" formed and quickly draw public attention. The creator of the page claimed to know a friend of Cassidy's who "confirmed that J.K. Rowling did write Cassidy a personal letter under the name of 'Dumbledor'. She also sent a wand, an acceptance letter to Hogwarts with a school supply list, along with the 3rdbook with Rowling's autograph."
Answer: At the memorial for her family
Where did Cassidy find strength after the tragedy?