how did he get into the room to stab his victims or get back out of the room afterwards? If his intent was to slaughter everyone present, why did he stop after killing only seven people? Clearly he wasn't subdued and captured, since he was reportedly "never caught." How could the FBI definitively know that a mask found seven years later was the very same one worn by the perpetrator of that massacre back in 1962?
like did they only dress up as murderous dolls or