How many people did czar Nicholas II kill?

There were 11 people: Tsar and his wife Alexandra, their son, Alexis, their 4 daughters: Tatiana, Olga, Anastasia, and Maria. Their doctor, Dr. Botkin and a servant that stayed with them in captivity. The day before, the communists executed Alexis bodyguard and constant companion by firing squad. Almost forgot, the family's cook also was shot and stabbed with the rest of the family.