Cynthia Olinde Tisdale, 63, was killed on May 18, 2018, during the Santa Fe High School shooting in Santa Fe, Texas. She was working as a substitute teacher in the school’s art classroom, assisting students, including those with special needs, when the attack occurred. Cynthia was one of ten victims killed by a 17-year-old gunman identified as Dimitrios Pagourtzis.

Cynthia had been married to William Recie Tisdale Sr. for nearly 47 years and was mother to three children and grandmother to eleven grandchildren. Her family described her as loving and selfless; her funeral was held May 25, 2018, which would have been her 64th birthday. A GoFundMe set up to help cover medical expenses for her husband, who suffered from idiopathic pulmonary fibrosis, raised well over its $30,000 goal.

Pagourtzis was arrested shortly after the shooting and charged with capital murder and aggravated assault; investigators reported he used a shotgun and a revolver and had planned the attack. Anyone who knew Cynthia or has information about her final day is asked to share what they remember.