Goofs

Glen's belief that he will go to heaven when dies and his motivation for lethally drugging the wine is so the others will too. Being a biblical historian and devout believer it seems very strange that he fails to realize that his plan will result in his breaking the commandment "Thou Shall not kill" several times over and his own participation would be considered suicide which are both grievous sins in the Christian faith that guarantee his being condemned to hell. The sin of murder is negated by Tracy telling every one about the plan but their acceptance would still be seen as suicide meaning they would be condemned to hell anyway. See more