context: An 18-year-old college student, Vladislav Roslyakov, is suspected of committing a crime . According to investigators, he planted an explosive device in the building of the educational institution and opened fire on students and employees, after which he shot himself. Some media have suggested that Roslyakov could imitate the actions of the killers who attacked Columbine School in April 1999.
question: Who committed the massacre at the Kerch Polytechnic College on October 17, 2018?
answers.text: An 18-year-old college student, Vladislav Roslyakov