In the 2002 film '' Bowling for Columbine '' , Michael Moore interviewed Heston at Heston 's home , asking him about an April 1999 meeting the NRA held in Denver , Colorado , shortly after the Columbine High School massacre . Moore criticized Heston for the perceived thoughtlessness in the timing and location of the meeting . When Moore asked Heston for his thoughts on why gun-related homicide is so much higher in the United States than in other countries , Heston said it was because , " we have probably more mixed ethnicity " and/or that " we have a history of violence , perhaps more than most countries " . Heston subsequently , on-camera , excused himself and walked away . Moore was later criticized for having conducted the interview in what some viewed as an ambush . The interview was conducted early in 2001 , before Heston publicly announced his Alzheimer 's diagnosis , but the film was released afterward , causing some to say that Moore should have cut the interview from the final film
Columbine High School massacre
Columbine High School massacre
Charlton Heston