Sullivan worked at the Aurora movie theater where the massacre took place but had decided to spend that night as a patron – to celebrate his 27th birthday. Two days later, he was planning to celebrate his first wedding anniversary with his wife, Cassie. "Alex was a gentle giant, known and loved by so many. He always had a glowing smile on his face and he made friends with everyone. Alex enjoyed all sorts of movies, was an avid comic book geek and loved the New York Mets," his family said in a statement.