Maybe, Brit. But it wasn't anyone, it was a security guard from a third-world country, which raises questions about screening methods and immigration control. In many countries police clearances and passports can be acquired fraudulently very easily. For example, I understand that it is common for underage laborers from some countries simply to travel under an older sibling's name and passport. Maybe this guy was properly vetted and screened, but we would never be told if it turned out he wasn't. After all, someone in adult life doesn't usually suddenly start raping and killing; typically there is a behavior pattern that has long been established.