Murder Mystery #2

It seems that one of the six official James Bond actors got a little too into character and murdered Blofeld's most recent portrayer, Christoph Waltz. Strangely, the only information known so far is that Waltz was killed in one of the six countries beginning with I, and that he was asphyxiated with one of the six naturally occurring noble gases. You have been assigned as the lead detective on this case, so it is your job to find out which actor murdered Waltz, with which noble gas, and in which country beginning with I.

Six witnesses have been brought in for questioning. The witnesses each have some knowledge of what was not involved in the murder, but they will only reveal this knowledge if you can demonstrate how well you know each of them.

Once you have discovered which people, weapons, and locations were not involved, you should be able to uncover the details of this murder.